Latest Articles of Analytica Chimica Acta


The discrimination threshold: A selection criterion for analytical methods based on measurement uncertainty – Application to animal stress studies 10.1016/j.aca.2018.03.032 2018-03-30 Many biological studies seek to confirm the effect of a treatment on the levels of chemical markers in biological tissues. This requires choosing the analytical method best able to detect the difference between basal levels and those found after treatment. We...
Near infrared emission spectroscopy for rapid compositional analysis of Portland cements 10.1016/j.aca.2018.03.035 2018-03-30 Near infrared emission spectroscopy (NIRES) has been investigated to yield a new analytical method for determination of CaO, SiO2, Al2O3, Fe2O3, MgO, and SO3 in Portland cement samples. The analyses were accomplished by correlation of the second derivative NI...
Volatile metabolites in breath strongly correlate with gut microbiome in CD patients 10.1016/j.aca.2018.03.046 2018-03-30 Microbiota composition and its metabolic capacity are very important for host health. Evidence suggests that gut microbiome is involved in the metabolites production by host-microbiome interaction. These metabolites can be absorbed in blood and excreted in ex...
A highly selective colorimetric and ratiometric fluorescent probe for instantaneous sensing of Hg2+ in water, soil and seafood and its application on test strips 10.1016/j.aca.2018.03.023 2018-03-30 A new simple and efficient oligothiophene-based colorimetric and ratiometric fluorescent probe has been developed for highly sensitive and fast detection of Hg2+ in water, soil and seafood. The probe 5-(1,3-dithiolan-2-yl)-2,2':5',2''-terthiophene 3 TS can se...
Electrochemical and Density Functional Theory Investigation on the Differential Behaviors of Core-Ring Structured NiCo2O4 Nanoplatelets toward Heavy Metal Ions 10.1016/j.aca.2018.03.048 2018-03-30 In order to further improve the electroanalytical performance toward heavy metal ions, core-ring structured NiCo2O4 nanoplatelets were used to modify glass carbon electrode (GCE) for the determination of heavy metal ions in water. Owing to the high surface ar...
Diffusion-based humidity control membrane for microfluidic-based gas detectors 10.1016/j.aca.2018.03.021 2018-03-30 This paper presents a cost-effective and reliable diffusion-based humidity removal membrane for microfluidic-based gas analyzers. The developed humidity control device reduces the relative humidity of a gas chamber and also stabilizes the humidity using inexp...
SPME-GC×GC-TOF MS fingerprint of virally-infected cell culture: Sample preparation optimization and data processing evaluation 10.1016/j.aca.2018.03.037 2018-03-30 Untargeted metabolomics study of volatile organic compounds produced by different cell cultures is a field that has gained increasing attention over the years. Solid-phase microextraction has been the sampling technique of choice for most of the applications ...
Alkylsilyl speciation and direct sample preparation of plant cannabinoids prior to their analysis by GC-MS 10.1016/j.aca.2018.03.049 2018-03-30 A literature criticism is given on methods currently using gas chromatography mass spectrometry (GC-MS) to determine plant cannabinoids (p-CBDs). In this study, trialkylsilylation of seven p-CBDs (including their transformation products formed in the drug use...
Simultaneous classification of multiple classes in NMR metabolomics and vibrational spectroscopy using interval-based classification methods: iECVA vs iPLS-DA 10.1016/j.aca.2018.03.020 2018-03-29 Interval based chemometric algorithms have proven to be very powerful for spectral alignments, spectral regressions and spectral classifications. The interval-based methods may not only improve the performance, but also reduce model complexity and enhance the...
Three-dimensional porous self-assembled chestnut-like nickel-cobalt oxide structure as an electrochemical sensor for sensitive detection of hydrazine in water samples 10.1016/j.aca.2018.03.029 2018-03-29 Three-dimensional NiCo2O4 is a kind of superior sensing material owing to its high electron transfer capability, large available surface area and numbers of active sites. In this work, NiCo2O4 of the three dimensions structure were easily achieved through a o...

The discrimination threshold: A selection criterion for analytical methods based on measurement uncertainty – Application to animal stress studies

10.1016/j.aca.2018.03.032

2018-03-30

Many biological studies seek to confirm the effect of a treatment on the levels of chemical markers in biological tissues. This requires choosing the analytical method best able to detect the difference between basal levels and those found after treatment. We...

Near infrared emission spectroscopy for rapid compositional analysis of Portland cements

10.1016/j.aca.2018.03.035

2018-03-30

Near infrared emission spectroscopy (NIRES) has been investigated to yield a new analytical method for determination of CaO, SiO2, Al2O3, Fe2O3, MgO, and SO3 in Portland cement samples. The analyses were accomplished by correlation of the second derivative NI...

Volatile metabolites in breath strongly correlate with gut microbiome in CD patients

10.1016/j.aca.2018.03.046

2018-03-30

Microbiota composition and its metabolic capacity are very important for host health. Evidence suggests that gut microbiome is involved in the metabolites production by host-microbiome interaction. These metabolites can be absorbed in blood and excreted in ex...

A highly selective colorimetric and ratiometric fluorescent probe for instantaneous sensing of Hg2+ in water, soil and seafood and its application on test strips

10.1016/j.aca.2018.03.023

2018-03-30

A new simple and efficient oligothiophene-based colorimetric and ratiometric fluorescent probe has been developed for highly sensitive and fast detection of Hg2+ in water, soil and seafood. The probe 5-(1,3-dithiolan-2-yl)-2,2':5',2''-terthiophene 3 TS can se...

Electrochemical and Density Functional Theory Investigation on the Differential Behaviors of Core-Ring Structured NiCo2O4 Nanoplatelets toward Heavy Metal Ions

10.1016/j.aca.2018.03.048

2018-03-30

In order to further improve the electroanalytical performance toward heavy metal ions, core-ring structured NiCo2O4 nanoplatelets were used to modify glass carbon electrode (GCE) for the determination of heavy metal ions in water. Owing to the high surface ar...

Diffusion-based humidity control membrane for microfluidic-based gas detectors

10.1016/j.aca.2018.03.021

2018-03-30

This paper presents a cost-effective and reliable diffusion-based humidity removal membrane for microfluidic-based gas analyzers. The developed humidity control device reduces the relative humidity of a gas chamber and also stabilizes the humidity using inexp...

SPME-GC×GC-TOF MS fingerprint of virally-infected cell culture: Sample preparation optimization and data processing evaluation

10.1016/j.aca.2018.03.037

2018-03-30

Untargeted metabolomics study of volatile organic compounds produced by different cell cultures is a field that has gained increasing attention over the years. Solid-phase microextraction has been the sampling technique of choice for most of the applications ...

Alkylsilyl speciation and direct sample preparation of plant cannabinoids prior to their analysis by GC-MS

10.1016/j.aca.2018.03.049

2018-03-30

A literature criticism is given on methods currently using gas chromatography mass spectrometry (GC-MS) to determine plant cannabinoids (p-CBDs). In this study, trialkylsilylation of seven p-CBDs (including their transformation products formed in the drug use...

Simultaneous classification of multiple classes in NMR metabolomics and vibrational spectroscopy using interval-based classification methods: iECVA vs iPLS-DA

10.1016/j.aca.2018.03.020

2018-03-29

Interval based chemometric algorithms have proven to be very powerful for spectral alignments, spectral regressions and spectral classifications. The interval-based methods may not only improve the performance, but also reduce model complexity and enhance the...

Three-dimensional porous self-assembled chestnut-like nickel-cobalt oxide structure as an electrochemical sensor for sensitive detection of hydrazine in water samples

10.1016/j.aca.2018.03.029

2018-03-29

Three-dimensional NiCo2O4 is a kind of superior sensing material owing to its high electron transfer capability, large available surface area and numbers of active sites. In this work, NiCo2O4 of the three dimensions structure were easily achieved through a o...