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35.305  Articles
1 of 3.531 pages  |  10  records  |  more records»
Headspace solid-phase microextraction (HSSPME) is one of the simplest and cost-efficient sample preparation approaches for determination of volatile organic compounds (VOCs) in soil. This study was aimed at the development of the model for numerical optim... see more

Abstract. In this study, solid-phase microextraction  method combines with gas chromatography-flame ionization detector. The proposed method is used for the preconcentration of some benzophenones. Influence of different factors on the efficiency of e... see more

High vacuum steam distillation, simultaneous distillation extraction, steam distillation, purge and trap methods are used for sample preparation in volatile component analysis. Since these methods are difficult and costly to implement, these methods have ... see more

Quantification of transformation products of unsymmetrical dimethylhydrazine (UDMH) in soil requires tedious, time- and labor-consuming sample preparation. The simple and fast method for quantification of transformation products of UDMH in aqueous extract... see more

Solid-phase microextraction in combination with gas chromatography and mass-spectrometry (GC-MS) was used for determination of benzene, toluene, ethylbenzene and o-xylene (BTEX), polycyclic aromatic hydrocarbons (PAH), and for identification of volatile o... see more

Endocrine disrupting compounds (EDCs) are exogenous substances that alter some function of the endocrine system and have adverse health effects on intact organisms, their off spring or (sub)populations. EDCs mimic or block the action of natural hormones, ... see more

Phenol is a toxic environmental pollutant possessing carcinogenic and mutagenic properties. Determination of phenol in soil by certified methods requires long and laborious sample preparation. Solid-phase microextraction (SPME) allows much simpler and fas... see more

Screening of toxic polycyclic aromatic hydrocarbons (PAHs) plays very important role allowing to determine the nature and sources of pollutants into the environment. The aim of this work was to develop a screening method of PAHs in air of Almaty by gas ch... see more

1,1-Dimethylhydrazine (1,1-DMH) used as a rocket fuel component is highly reactive and unstable compound. It greatly complicates its accurate and express determination in environmental samples. Goal of this work was to develop a method for its express det... see more

1 of 3.531 pages  |  10  records  |  more records»