Analytical chemistry is the science of researching the composition, state, structure, and methods and principles for determining the content of constituents. It is an important branch of the chemistry discipline. Analytical chemistry plays an important role not only in the development of the chemical discipline itself, but also in all fields related to chemistry. It can be said that any human practice involving chemical phenomena is inseparable from analytical chemistry. Nowadays, many different analytical methods have been developed, which can be classified according to analysis tasks, analysis objects, analysis basis, analysis requirements and sample dosage. According to the analysis tasks, it can be divided into qualitative analysis, quantitative analysis and structural analysis. The task of qualitative analysis is to identify which elements, groups of atoms, functional groups or compounds are composed of substances; the task of quantitative analysis is to determine the content of the relevant components in the substance; the task of structural analysis is to study the molecular structure or crystal structure of the substance. (1) According to the analysis object, it can be divided into inorganic analysis and organic analysis; the object of inorganic analysis is inorganic matter, and the object of organic analysis is organic matter. In inorganic analysis, it is usually required to identify which elements, ions, atomic groups or compounds are composed. The percentage of each component is determined, and sometimes the crystal structure is determined. In organic analysis, not only the constituent elements are required to be identified, More importantly, analysis and structural analysis of functional groups are required. (2) According to the physical or chemical properties of the material, it can be divided into instrumental analysis and chemical analysis. According to the specific requirements, it can be divided into routine analysis, rapid analysis and arbitration analysis. Routine analysis refers to the analysis in the daily production of general laboratories, also known as routine analysis; rapid analysis is a kind of routine analysis, mainly used for the control of production processes, requiring the results to be reported in the shortest possible time, analysis error Generally, the arbitral analysis is that when different units have arguments about the analysis results, the relevant units are required to perform accurate analysis using the specified method to judge the accuracy of the original analysis results. (3) According to the dosage of the sample, it can be generally divided into constant (>0.1g), semi-micro (0.01~0.1g) and trace (1~10mg). (4) In the inorganic qualitative chemical analysis, the semi-micro method is generally used, and in the quantitative chemical analysis, the constant analysis method is often used. The relative amounts of the components analyzed in the sample were roughly divided into a constant component analysis (>1%), a trace component analysis (0.01 to 1%), and a trace component analysis (<0.01%). The analysis of many complex mixtures and trace or trace components in some materials requires separation and enrichment. This has resulted in a range of separation techniques such as extraction, distillation, ion exchange, chromatography, precipitation and flotation separation, which are integral parts of analytical chemistry. [Environmental Analytical Chemistry] Environmental Analytical Chemistry, referred to as environmental analysis, is a discipline that studies the types and components of pollutants in the environment and how to conduct qualitative and quantitative analysis of chemical pollutants in the environment. It is a branch of environmental chemistry. Environmental analytical chemistry is produced, developed, and refined when solving environmental problems. In the 1950s, the public plagues in Japan had alarmed the world. In order to find the cause of pain, it has been 11 years. Later, environmental analysis chemists used spectroscopy to check that the river water in the ward contained harmful elements such as lead, cadmium, and arsenic, and then used elemental tracking to analyze the soil and food in the ward, and found that the content of lead and cadmium was high. . Later, the quantitative analysis of the bones of patients with pain and pain was carried out, and the contents of zinc, lead and cadmium in the ashes were surprisingly high. In order to determine the causative factors, zinc, lead and cadmium were separately fed into the feed to feed the animals, and elemental tracking analysis was carried out on the animals to confirm the serious harm of cadmium to bones, and the cause of pain and pain was uncovered. The development of modern science, especially the development of modern chemistry, physics, mathematics, electronics, biology, as well as the emergence of accurate, reliable, sensitive, selective, fast, and simple environmental pollution analysis techniques and automated instruments, leading to environmental analytical chemistry The sun is ripe. Environmental analytical chemistry has now penetrated into all areas of environmental science and is the most effective means of obtaining environmental quality information. The objects of environmental analytical chemistry research are quite complex, including the atmosphere, water, soil, sediment, minerals, waste, animals, plants, food, human tissue and so on. The content of the contaminating element or compound determined by the Environmental Analytical Chemistry is very low, and the absolute content thereof is often at a level of 10-6 to 10-12 g. Analytical techniques for environmental analytical chemistry are moving toward continuous automation, computerization, and the combined use of multiple methods and instruments. The automatic analysis methods currently used include colorimetric analysis, ion selective electrode, x-ray fluorescence spectroscopy, atomic absorption spectroscopy, polarography, gas chromatography, liquid chromatography, and flow injection analysis. Laser has been applied as a light source technology for analytical chemistry. Laser technology plays a key role in the development of environmental analytical chemistry due to its high resolution, high sensitivity, long distance and short time. With the development of environmental science research in depth, environmental analytical chemistry often requires detection and analysis of trace and ultra-trace levels. Therefore, research on high sensitivity, selectivity, and rapid trace and ultra-trace analysis methods. It is the main direction for the future development of environmental analytical chemistry. [Qualitative Analytical Chemistry] Qualitative analytical chemistry is the science of determining the elements or constituents of a sample. A branch of analytical chemistry. The purpose of the study is to determine the chemical composition of the subject (sample). The main contents of qualitative analytical chemistry research are: 1 Separate samples for analysis. That is, take a part of the sample and use the exclusive reaction to detect any one of the components to be detected. 2 Perform a systematic analysis of the sample. That is, several selective reactions are sequentially applied to gradually separate the ions, and then each group is separated until it is separated into only one substance, and finally a confirmatory reaction is taken to confirm the substance. The most famous cation system analysis is the H2S system method. In recent years, due to the use of selected instruments, qualitative analysis has developed as rapidly as variable analysis, and has become an important direction of analytical chemistry.


Amino compound >
Oxy-containing amino compound Cycloalkylamines, aromatic monoamines, aromatic polyamines and derivatives and salts thereof Acyclic monoamines, polyamines and their derivatives and salts Amide compound Sulfonic acid amino compound
Alcohols, phenols, phenolic compounds and derivatives >
2-cycloalcohol Halogenated, sulfonated, nitrated or nitrosated derivatives of alcohols Extremely halogenated, sulfonated, nitrated or nitrosated derivatives of phenols Phenol and its halogenated, sulfonated, nitrated or nitrosated derivatives Acyclic alcohol
Nitrogen-containing compound
Nitrile compound
Organic derivative of hydrazine or hydrazine
Terpenoid
Ether compounds and their derivatives >
Ether, ether alcohol Halogenation, sulfonation, nitration or nitrosation of ethers, ether alcohols, ether phenols
Aldehyde
Carboxylic compounds and derivatives >
Cyclic carboxylic acid Halogenation, sulfonation, nitration or nitrosation of carboxylic acids Halogenation, sulfonation, nitration or nitration of carboxylic anhydrides Carboxylic acid halide Carboxylic esters and their derivatives Salt of carboxylic acid ester and its derivatives Acyclic carboxylic acid
Hydrocarbon compounds and their derivatives >
Aromatic hydrocarbon Cyclic hydrocarbon Hydrocarbon sulfonate Hydrocarbon halide Hydrocarbon nitrite Acyclic hydrocarbon
Ketone compound
Alkyl ureas and their derivatives and salts
Inorganic acid ester
Heterocyclic compound
Diazo, azo or azo compound
Organosilicon compound
Organometallic compound >
Organic palladium Organic germanium, cobalt, strontium, barium, gallium, germanium, germanium, germanium, germanium, etc. Organic calcium Zirconium Organic potassium Organic Organic lithium Organic Organic aluminum Organotin Organic manganese Organic sodium Organic nickel Organic titanium Organic iron Organic copper Organotin Organic zinc Organic Organic Organic germanium, mercury, silver, platinum, etc. Organic germanium, antimony, bismuth, tungsten, antimony, bismuth, lead, vanadium, molybdenum, chromium, antimony, etc.
Organic sulfur compound
Organic phosphine compound
Organometallic salt
Organic fluorine compound >
Fluorobenzoic acid series Fluorobenzonitrile series Fluorobenzaldehyde series Fluorobenzyl alcohol series Fluoroanisole series Fluoroaniline series Fluorophenylacetic acid series Fluorophenol series Fluorobenzoic acid series Fluoronitrobenzene series Fluoropyridine series Potassium fluoroborate series Fluorobenzyl alcohol series Fluorotoluene series Fluorine red series Fluoroethane series Fluoropropane series
Respiratory medication >
Asthma Other respiratory medications Peony Antitussive
Hormone and endocrine-regulating drugs >
Birth control pills Pituitary hormone Estrogen and progestogen drugs Adrenocorticotropic drugs Gonadotropin Thyroid hormone and antithyroid drugs other Prostaglandins Adrenal corticosteroids Androgen and anabolic hormone drugs Pancreatic hormones and other blood sugar regulating drugs Treatment of male erectile dysfunction drugs
Antipyretic analgesics >
Non-steroidal anti-inflammatory drugs Antipyretic and analgesic Anti-migraine drug Anti-gout medicine Analgesic
Antiallergic >
Allergic reaction medium blocker Antihistamine
Antiparasitic drug >
Anti-amebiasis and anti-trichomoniasis drugs Antimalarial Resistance to filariasis and anti-leishmaniasis Anti-fungal medicine Anthelmintic Antiprotozoal Anthelmintic
Antibiotics >
Beta-lactamase inhibitor Aminoglycoside Macrolide drug Peptide Polyene Rifamycin Lincosamide Other antibiotics Penicillin Tetracycline Cephalosporin Amide alcohol Agricultural antibiotics
Antineoplastic agents >
Hormone antineoplastic agents Antimetabolite antineoplastic Antibiotic antineoplastic agents Anti-tumor adjuvant Other antineoplastic agents Natural source antineoplastic agents Alkylating agent Tinic antineoplastic agents Idiopathic pulmonary fibrosis (IPF) treatment
Anesthetic Agents >
Skeletal muscle relaxant Local anesthetics General anesthetics
Urinary system medication >
Diuretic Diabetes insipidus medication Other urinary system medication Dehydrated medicine
Other chemicals >
other Health and epidemic prevention drugs
Synthetic anti-infective drugs >
Sulfonamides and synergists Antiviral drugs Anti-tuberculosis leprosy Antihelium drug Antifungal drugs Quinolone Natural source anti-infectives Disinfectant antiseptic Nitrofuran
Nervous system medication >
2 sedative and hypnotics Antiepileptic and anticonvulsant Anxiolytic Antipsychotic Antidepressant, manic Anti-shock palsy Brain metabolism regulating drug Cholinergic Other nervous system medication Central stimulant Parkinson's syndrome
Water, electrolyte and acid-base balance regulator >
Electrolyte balance regulator Glucose drug Acid-base balance regulator
Vitamins and minerals >
Trace elements and mineral drugs Vitamin AD drugs Vitamin B drugs Vitamin C drugs Nutritional health medicine
Digestive system medication >
Liver disease medication Acid and gastric mucosal protective drugs Biliary medicine Other digestive system medication Appetite suppressant and other diet pills Gastrointestinal drug Gastrointestinal expectorant Laxative antidiarrheal Inhibition of gastric acid secretion Antiemetic emetic Digestive drug
Blood system medication >
Leukocyte proliferative drug Platelet proliferative drug Anticoagulant and antiplatelet drugs Anti-anemia drug Blood volume expander Hemostatic drug
Circulatory system medication >
Regulating blood lipids Prevention and treatment of angina pectoris Calcium channel blocker Anti-congestive heart failure medicine Antihypertensive drug Antiarrhythmic drug Anti-shock vasoactive drug Other circulatory system medication Angiotensin converting enzyme and receptor inhibitor Peripheral vasodilator Beta-adrenergic receptor blocker Treatment of chronic cardiac insufficiency Anti-atherosclerosis
Diagnostic medication >
Organ function test agent Image inspection medication
Special medicine >
Radioisotope Antidote Stomatology medication Dermatology medication Surgical medication Ophthalmic medication
Drugs that affect tissue metabolism
Feed drug additive
Anti-stress drug
Immune function drug >
Immunomodulatory drug Immunosuppressive drug
Veterinary drug raw materials
Inhibitor
Common amino acids and protein drugs
Nucleic acid drug
Enzymes and coenzymes
Inhibitor >
Immune inhibitor Protein tyrosine kinase Neuronal Signaling PI3K/Akt/mTOR inhibitor (PI3K/Akt/mTOR) Metabolism Cell Cycle Epigenetics Cytoskeletal Signaling Angiogenesis DNA damage Proteases Apoptosis Mitogen-activated protein kinase (MAPK) Endocrinology & Hormones G protein coupled receptor(GPCR & G Protein) Transmembrane Transporters Tyrosine protein kinase/signal transducer and transcriptional activator inhibitor (JAK/STAT) TGF-beta/Smad signaling pathway inhibitor (TGF-beta/Smad) Stem Cells & Wnt Signaling Paths (Stem Cells & Wnt) Nuclear transcription factor (NF-κB) Ubiquitin inhibitor Microbiology Autophagy lysosome (Autophagy)
Biological response modifier
Fatty drug
Amino acids and their derivatives >
Arginine derivatives Asparagine derivatives Aspartic acid derivative Cysteine derivative Glutamine derivative Glutamic acid derivative Glycine derivatives Histidine derivative Isoleucine derivative Leucine derivative Lysine derivative Methionine derivatives Phenylalanine derivatives Proline derivatives Serine derivative Threonine derivative Tryptophan derivatives Tyrosine derivatives Proline derivatives Alanine derivatives Methionine derivatives BOC-amino acid Cbz-amino acid FMOC-amino acid --amino acid Other protected amino acids Amino alcohol derivative Amino acid salt Ester amino acid Other amino acid derivatives Natural amino acids and their derivatives
Carbohydrate >
Monosaccharide Oligosaccharide Polysaccharide Double sugar
Biochemical reagent >
Biological dye Acid-base indicator Adjuvant
Nucleoside drugs >
Nucleoside intermediate Deoxynucleotides and their analogues Nucleotides and their analogues
Condensing agent
Peptide
Natural product
Plant extracts
Chinese herbal medicine ingredients
Microbiological reagent
Protein research
antibody >
Antibody Enzyme secondary antibody Apoptosis and autophagy Cell metabolism Chromatin / epigenetic / cell cycle Cytoskeleton/extracellular matrix MAPK and PI3K/Akt pathway Neuroscience Immunity and inflammation PKC, calcium ion and lipid signaling pathway Stem cells, development and differentiation Protein translation, folding and degradation Other categories of primary antibodies
  • CAS Number: 133481-09-1
  • MF: C9H13NO2
  • MW: 167.205
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 356.6±15.0 °C at 760 mmHg
  • Melting Point: 98-100ºC
  • Flash Point: 169.5±20.4 °C
  • CAS Number: 631-31-2
  • MF: C7H12O4
  • MW: 160.16800
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: 1.2 g/cm3
  • Boiling Point: 257.8ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 124ºC
  • CAS Number: 136765-36-1
  • MF: C18H18D3NO3
  • MW: 302.38300
  • Catalog:Forensic and veterinary standards
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: 11ºC
  • CAS Number: 25459-12-5
  • MF: C8H13N3O4S
  • MW: 247.27200
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: 1.43g/cm3
  • Boiling Point: 528.4ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 273.4ºC
  • CAS Number: 42542-10-9
  • MF: C11H15NO2
  • MW: 193.24200
  • Catalog:standard material
  • Density: 1.1 g/cm3
  • Boiling Point: 318ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 9℃
  • CAS Number: 14818-35-0
  • MF: C12H16O2
  • MW: 192.254
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 332.2±11.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 137.5±16.7 °C
  • CAS Number: 23283-97-8
  • MF: C10H20O
  • MW: 156.26500
  • Catalog:Food and beverage standards
  • Density: 0.89g/cm3
  • Boiling Point: 218-219ºC
  • Melting Point: 77-83ºC
  • Flash Point: 93.3ºC
  • CAS Number: 88247-87-4
  • MF: C21H29D3N2O
  • MW: 331.51000
  • Catalog:standard material
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 1231958-32-9
  • MF: C16H18N3S+
  • MW: 284.39922
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 34681-10-2
  • MF: C7H14N2O2S
  • MW: 190.263
  • Catalog:Pesticides, veterinary drugs and fertilizers
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 22393-88-0
  • MF: C38H74O2
  • MW: 562.99300
  • Catalog:Fatty acid, fatty acid methyl ester
  • Density: 0.862 g/cm3
  • Boiling Point: 611ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 42ºC
  • CAS Number: 1325559-19-0
  • MF: C913C6H15NO2
  • MW: 247.241
  • Catalog:Ion chromatography reagent
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 1364932-19-3
  • MF: C14H24N2O4
  • MW: 284.35100
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 298-96-4
  • MF: C19H15ClN4
  • MW: 334.802
  • Catalog:Common analytical reagents
  • Density: N/A
  • Boiling Point: >360
  • Melting Point: 250 °C(lit.)
  • Flash Point: 91.7ºC
  • CAS Number: 159717-69-8
  • MF: C11H9ClN4O4
  • MW: 296.66700
  • Catalog:Common analytical reagents
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 17898-21-4
  • MF: C9H20Si
  • MW: 156.341
  • Catalog:Derivatization reagent
  • Density: 0.8±0.1 g/cm3
  • Boiling Point: 159.7±9.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 39.1±17.5 °C
  • CAS Number: 51624-21-6
  • MF: CH3Br
  • MW: 95.93120
  • Catalog:Pesticides, veterinary drugs and fertilizers
  • Density: 1.73 g/mL at 0ºC(lit.)
  • Boiling Point: 4ºC(lit.)
  • Melting Point: -94ºC(lit.)
  • Flash Point: N/A
  • CAS Number: 29205-06-9
  • MF: C27H37FO5
  • MW: 460.57800
  • Catalog:Pharmacopoeia Standards and Magazine Standards
  • Density: 1.19g/cm3
  • Boiling Point: 572.3ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 299.9ºC
  • CAS Number: 29547-00-0
  • MF: C5H12NNaO6S4
  • MW: 333.402
  • Catalog:Pesticides, veterinary drugs and fertilizers
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: 142-143 °C
  • Flash Point: N/A
  • CAS Number: 34114-98-2
  • MF: C20H30O7
  • MW: 382.448
  • Catalog:Food and cosmetics standards
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 527.1±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 182.1±23.6 °C
  • CAS Number: 145225-01-0
  • MF: C17H8Cl2D4N4O
  • MW: 363.23400
  • Catalog:standard material
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: 9℃
  • CAS Number: 490-91-5
  • MF: C10H12O2
  • MW: 164.201
  • Catalog:Food and beverage standards
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 232.0±15.0 °C at 760 mmHg
  • Melting Point: 167 ºC
  • Flash Point: 103.9±0.0 °C
  • CAS Number: 6018-28-6
  • MF: C7H12ClNO2
  • MW: 177.62900
  • Catalog:Forensic and veterinary standards
  • Density: N/A
  • Boiling Point: 266.7ºC at 760 mmHg
  • Melting Point: 260ºC
  • Flash Point: 115.1ºC
  • CAS Number: 849-55-8
  • MF: C19H26ClNO2
  • MW: 335.86800
  • Catalog:Forensic and veterinary standards
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: 111ºC
  • Flash Point: N/A
  • CAS Number: 446044-45-7
  • MF: C23H19NO4
  • MW: 373.401
  • Catalog:HPLC labeling reagent
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 631.4±48.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 335.6±29.6 °C
  • CAS Number: 12026-98-1
  • MF: H74Na3O41PW12
  • MW: 3036.59000
  • Catalog:Common analytical reagents
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A
  • CAS Number: 232257-97-5
  • MF: C27H44N2O
  • MW: 412.65100
  • Catalog:Analytical standard
  • Density: 0.97g/cm3
  • Boiling Point: 585.8ºC at 760 mmHg
  • Melting Point: 112-116ºC
  • Flash Point: 308.1ºC
  • CAS Number: 1020719-76-9
  • MF: C23H23D4FN4O2
  • MW: 414.50900
  • Catalog:standard material
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: 158-160°C
  • Flash Point: 9℃
  • CAS Number: 22890-21-7
  • MF: C18H36O2
  • MW: 284.47700
  • Catalog:Fatty acid, fatty acid methyl ester
  • Density: 0.88 g/cm3
  • Boiling Point: 183ºC 5mm
  • Melting Point: N/A
  • Flash Point: 165ºC
  • CAS Number: 32477-35-3
  • MF: C7H3F7N2O
  • MW: 264.100
  • Catalog:Common analytical reagents
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 177.2±50.0 °C at 760 mmHg
  • Melting Point: 9-13 °C
  • Flash Point: 61.0±30.1 °C