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[PDF] Top 20 Determination of plasticizers in drinking water using gas chromatography and mass spectrometry.

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Determination of plasticizers in drinking water using gas chromatography and mass spectrometry.

Determination of plasticizers in drinking water using gas chromatography and mass spectrometry.

... DETERMINATION OF PLASTICIZERS IN DRINKING WATER USING GAS CHROMATOGRAPHY AND MASS ...levels of plasticizer endocrine disruptors (diethyl ... See full document

8

Determination of Pesticide Residues in Banana by Using High Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry

Determination of Pesticide Residues in Banana by Using High Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry

... liquid chromatography having UV/visible detector was used for identification and quantification of ...condition of HPLC was binary gradient, mobile phase was acetonitrile: water; ... See full document

6

The role of miniaturized systems in analytical toxicology: new psychoactive substances

The role of miniaturized systems in analytical toxicology: new psychoactive substances

... use of K as a “rave”, party, and nightclub drug has led to an increased public concern about its potential hazards ...[17,23]. In order to increase the ability and scope of drug ... See full document

157

Use of a Natural Sorbent as Alternative Solid-Phase Microextraction Coating for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples by Gas Chromatography-Mass Spectrometry

Use of a Natural Sorbent as Alternative Solid-Phase Microextraction Coating for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples by Gas Chromatography-Mass Spectrometry

... reproducibility and method optimization, chromatographic analysis was performed using an Agilent 7820A gas chromatograph, with flame ionization detector (FID) equipped with a split/splitless injector ... See full document

9

J. Braz. Chem. Soc.  vol.21 número6

J. Braz. Chem. Soc. vol.21 número6

... the determination of 15 pesticides in bread samples using gas chromatography coupled with mass spectrometry (GC-MS), operating in the negative chemical ... See full document

6

J. Braz. Chem. Soc.  vol.12 número4

J. Braz. Chem. Soc. vol.12 número4

... occurrence of the endocrine disruptor compounds, such as 4-nonylphenol isomers and bisphenol A was determined in surface water samples from ...preconcentration of 200 mL of ... See full document

6

Analysis of organochlorine pesticides in water using headspace solid phase microextraction with gas chromatography and mass spectrometry.

Analysis of organochlorine pesticides in water using headspace solid phase microextraction with gas chromatography and mass spectrometry.

... ANALYSIS OF ORGANOCHLORINE PESTICIDES IN WATER USING HEADSPACE SOLID PHASE MICROEXTRACTION WITH GAS CHROMATOGRAPHY AND MASS ...with gas chromatography ... See full document

5

Determination of amphetamines-type stimulants in urine samples using microextraction by packed sorbent and gas chromatography-mass spectrometry

Determination of amphetamines-type stimulants in urine samples using microextraction by packed sorbent and gas chromatography-mass spectrometry

... solidification of floating organic drop; MISPE, molecularly imprinted-solid phase extraction; CC SHLLE, counter current salting-out spectrometry; SADLLME, surfactant -assisted dispersive liquid liquid ... See full document

70

Rev. bras. farmacogn.  vol.25 número2

Rev. bras. farmacogn. vol.25 número2

... residues determination at trace levels seeks for validated analytical methods with shorter analysis time and higher sample throughput (Chen et ...analysis of pesticide residues in made tea, ... See full document

7

J. Braz. Chem. Soc.  vol.22 número8

J. Braz. Chem. Soc. vol.22 número8

... developed using matrix solid-phase dispersion (MSPD), together with gas chromatography coupled to mass spectrometry (GC-MS) for determination of ametryn, tetraconazole, ... See full document

6

J. Braz. Chem. Soc.  vol.24 número5

J. Braz. Chem. Soc. vol.24 número5

... beginning of the extraction, followed by a slower increase until reaching a plateau, in which the analyte extraction remains constant over ...sensitivity and reproducibility, the extraction should be ... See full document

10

Int. Arch. .  vol.19 número2

Int. Arch. . vol.19 número2

... roles in cell, tissue, and organ physiolo- gy; not only do they provide an energy reservoir and serve as structural components of membranes, but they also act as signaling molecules and ... See full document

10

J. Braz. Chem. Soc.  vol.27 número3

J. Braz. Chem. Soc. vol.27 número3

... (OVCAR-8) and glioblastoma (SF-295). Cells were maintained in Roswell Park Memorial Institute (RPMI) 1640 medium supplemented with 10% (v/v) fetal bovine serum, 2 mmol L -1 glutamine, 100 U mL ... See full document

5

Determination of polychlorinated biphenyls in corn by solid phase extraction followed by gas chromatography-mass spectrometry.

Determination of polychlorinated biphenyls in corn by solid phase extraction followed by gas chromatography-mass spectrometry.

... O objetivo do presente estudo foi validar um método de extração, envolvendo a utilização de ultrassom e a extração em fase sólida (EFS), seguida de cromatografia a gás (CG) acoplada à [r] ... See full document

8

Linking biogenic hydrocarbons to biogenic aerosol in the Borneo rainforest

Linking biogenic hydrocarbons to biogenic aerosol in the Borneo rainforest

... U., and Jimenez, J. L.: O/C and OM/OC ratios of primary, secondary, and ambient organic aerosols with high- resolution time-of-flight aerosol mass spectrometry, ... See full document

29

Fast Ephedrine Quantification by Gas Chromatography Mass Spectrometry

Fast Ephedrine Quantification by Gas Chromatography Mass Spectrometry

... cathine and norephedrine; the other ions were smaller than 10% of these base ...selectivity and could be identified by their retention ...observed in all negative urines evaluated (Figure 1a). ... See full document

8

Braz. J. Pharm. Sci.  vol.51 número2

Braz. J. Pharm. Sci. vol.51 número2

... prepared and injected in order to compare it with the tablet sample (Figure ...result of stress did not interfere in the detection of saxagliptin, with purity peak values greater than ... See full document

6

Aplication of chemometrics methods in characterization of cigar using matrix solid phase dispersion and gas chromatography-mass spectrometry.

Aplication of chemometrics methods in characterization of cigar using matrix solid phase dispersion and gas chromatography-mass spectrometry.

... APLICATION OF CHEMOMETRICS METHODS IN CHARACTERIZATION OF CIGAR USING MATRIX SOLID PHASE DISPERSION AND GAS CHROMATOGRAPHY-MASS ...SPECTROMETRY. In ... See full document

8

Validation of a method for the analysis of volatile organic compounds in water

Validation of a method for the analysis of volatile organic compounds in water

... uncertainty of the method was determined for each compound by combining the component uncertainty of precision, calibration standards and regression interpolation and then multiplying the ... See full document

156

J. Braz. Chem. Soc.  vol.14 número3

J. Braz. Chem. Soc. vol.14 número3

... tall) and may be found, from December to May, not only in the Amazonian region, but also in some Northeastern states of ...diameter of 1.5 to 2 cm, and a strong odor resembling a ... See full document

4

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