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Chemometrics and chromatographic fingerprints to classify plant food supplements according to the content of regulated plants.

using SIMCA and PLS- DA. For each model, misclassification rates for the external test set of maximum one sample could be obtained. The models were applied to five real samples resulting in the ...

Detection of regulated herbs and plants in plant food supplements and traditional medicines using infrared spectroscopy.

misclassifications for the selected test set. For the other three a success rate of 50% was obtained. Mid- IR combined with SIMCA can therefore be applied as a first step in the screening of unknown samples, before ...

Development and validation of a HS/GC-MS method for the simultaneous analysis of diacetyl and acetylpropionyl in electronic cigarette refills

method methodology methods ON profile public public health Public-health Quality Quality Control Quantification SAFETY Sample Samples SCREENING study tobacco toxicity Toxicology use VALIDATION Abstract: ...

An application of mass spectrometry for quality control of biologicals: Highly sensitive profiling of plasma residuals in human plasma-derived immunoglobulin.

concerns and hence there is a need for highly sensitive profiling of residual plasma source proteins. This study aims to consider LC- ESI- QTOF data-dependent acquisition in combination with sample ...

Pesticide Residues on Three Cut Flower Species and Potential Exposure of Florists in Belgium.

pesticide contamination and the risk of florists’ exposure when handling cut flowers, sampling and analysis of 90 bouquets of the most commonly sold cut flowers in Belgium (50 bouquets of roses; 20 of ...

Chemometrics and the identification of counterfeit medicines-A review.

the major emphasis on the most frequently selected instrumental techniques to characterize drug samples and the chemometric methods being used to explore and/or model the analytical data. However, ...

Chromatographic impurity fingerprinting of genuine and counterfeit Cialis® as a means to compare the discriminating ability of PDA and MS detection.

were developed to analyse both genuine and counterfeit samples of Cialis®. The obtained PDA and MS fingerprints were explored and modelled using unsupervised Principal Component Analysis (PCA) and ...

In vitro Dermal Absorption of Hydroquinone: Protocol Validation and Applicability on Illegal Skin-Whitening Cosmetics.

used to determine the dermal absorption of illegal skin-whitening cosmetics containing hydroquinone. All samples gave high dermal absorption values, rendering them all unsafe for human health. These ...

Discriminating nicotine and non-nicotine containing e-liquids using infrared spectroscopy.

samples, both for border control as to check label compliance of the sample. The use of attenuated total reflectance-infrared spectroscopy (ATR- IR) and near infrared spectroscopy (NIR), combined with ...

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