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Glc/ecd

Urine Extract with hexane successively wash with water, sodium hydroxide, hydrochloric acid, and water GLC/ECD No data >90 Fowler 1969b... [Pg.138]

Figure 2. Calibration curve for the glc-ecd analysis of tris (2,3-dibromopropyl)-phosphate on 3% SE-30 on Chromosorb W(HP) 100/120 mesh... Figure 2. Calibration curve for the glc-ecd analysis of tris (2,3-dibromopropyl)-phosphate on 3% SE-30 on Chromosorb W(HP) 100/120 mesh...
Table V lists the detection limits for several semi-volatile brominated organics by glc/ms/comp, glc/ecd and tlc/sd. By far the greatest sensitivity to TRIS is attainable with glc/ecd. However, the versatility and identification capabilities of glc/ms/comp make it the method of choice for sample analysis. Consequently, the majority of the samples were analyzed by glc/ms/comp. Table V lists the detection limits for several semi-volatile brominated organics by glc/ms/comp, glc/ecd and tlc/sd. By far the greatest sensitivity to TRIS is attainable with glc/ecd. However, the versatility and identification capabilities of glc/ms/comp make it the method of choice for sample analysis. Consequently, the majority of the samples were analyzed by glc/ms/comp.
Compound applied directly to filter followed by sampling 2038 m3 of air. bAnalyzed by glc/ecd. [Pg.224]

Durham, NC). Under these conditions the temperature of the air stream midway through Section B was 50 C and had dropped to 30°C upon reaching the filter (Section C). Aliquots of the air stream were withdrawn through the septum in Section B and analyzed by glc/ecd in order to determine the air stream concentration. After termination of air flow, the filter, glass wool plug and sorbent, if any, were extracted with acetone and the extracts analyzed by glc/ecd. The apparatus from the injection port to the filters was rinsed with acetone and analyzed to determine the TRIS which was surface absorbed. [Pg.226]

Decabrom, Tetrabrom, and Firemaster 680. All of these compounds are amenable to analysis by selected ion monitor glc/ms/comp. However, substantially lower detection limits for TRIS were attained using glc/ecd. Thin-layer chromatography was used for the analysis of Decabrom in some air samples collected during a preliminary study. [Pg.227]

A method was developed and tested for collecting semi- and non-volatile brominated organic compounds from air using a glass fiber filter and a high-volume air sampler. Exposed filters were extracted with acetone and the extracts analyzed by either glc/ms/comp, glc/ecd or tic. Recoveries of selected compounds from the filter material were >87%. [Pg.229]

P de Voogt, N Haak, RB Geerdink, UATh Brinkman. Determination of metoxuron and 3-chloro-4-methoxianiline via direct derivatization with heptafluorobutyric anhydride and GLC-ECD. Chemos-phere 13 1193-1200,1984. [Pg.711]

Midha K. K., Cooper J K., Gagne D, and Bailey K. (1979) Detection of nanogram levels of various ring substituted phenyl-isopropylamines in urine and plasma by GLC-ECD. /. Anal. Toxicol. 3,53-58... [Pg.49]

Sukul, P. 1994. Extraction and clean up procedures for the analysis of permethrin, cypermethrin, deltamethrin and fenvalerate in crops by GLC-ECD, Toxicol. Environ. Ghem., 44 217-223. [Pg.197]

Phenelzine Measurement in Human Plasma A Sensitive GLC-ECD Procedure Commun. Psychopharmacol. 2(6) 505-512 (1978) CA 91 13341r... [Pg.50]

A GLC-ECD Assay for Simultaneous Determination of Fenfluramine and Norfenfluramine in Human Plasma and Urine... [Pg.176]

ECD = electron capture detector GC = gas chromatography GLC = gas liquid chromatography MS = mass spectrometry... [Pg.139]

Heptachlor, heptachlor epoxide, and their metabolites have been measured in urine and feces using GC/ECD (Tashiro and Matsumura 1978). Sample preparation steps involve extraction with acetone and hexane, clean-up on Florisil and silicic acid columns, and extraction of the derivatized metabolites into hexane for GLC analysis. Precision, accuracy, and sensitivity were not reported (Tashiro and Matsumura 1978). [Pg.102]

Detector Technology. The second advance in GLC is detector technology. Five detectors are used widely in toxicant detection the flame ionization (FID), flame photometric (FPD), electron capture (ECD), conductivity, and nitrogen-phosphorous detectors. Other detectors have application to toxicant analysis and include the Hall conductivity detector and the photoionization detector. [Pg.452]

Levels of IAA were analyzed by HPLC with a fluorometric detector and indole-propionic acid as an internal standard. Levels of ABA were analyzed by GLC with an ECD and [14C]ABA as an internal standard. Means of results of 3 experiments and standard errors are given (n=3). Reproduced and revised with permission from ref. 8. [Pg.314]

Pentafluorobenzyl- chloroformate 2.16.1 Derivatization of tertiary amines for ECD-GLC analysis and mass spectrometry Convenient introduction of fluorine when perfluoro acid chlorides or anhydrides cannot be used... [Pg.114]

I,2,3,4,5,6)- Pentafluorobenzyl- hydroxylamine hydrochloride 2.16.2 Derivatization of steroids [26] and other ketones for ECD-GLC analysis and mass spectrometry Convenient fluorine-introducing alkylation for ketones... [Pg.114]

Pentafluorobenzyl bromide 2.16.3 Preparation of pentafluorobenzyl ethers and esters for ECD-GLC and MS analysis N-alkylalion of barbiturates 11381 and sulfonamides 1126] ... [Pg.114]

Determination of Free Testosterone in Plasma by GLC-Nickel-63 ECD [Electron Capture Detector]... [Pg.40]

See other pages where Glc/ecd is mentioned: [Pg.218]    [Pg.226]    [Pg.228]    [Pg.229]    [Pg.670]    [Pg.670]    [Pg.939]    [Pg.940]    [Pg.218]    [Pg.226]    [Pg.228]    [Pg.229]    [Pg.670]    [Pg.670]    [Pg.939]    [Pg.940]    [Pg.160]    [Pg.216]    [Pg.245]    [Pg.74]    [Pg.5]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.47]    [Pg.754]   
See also in sourсe #XX -- [ Pg.217 , Pg.218 , Pg.219 , Pg.220 , Pg.221 , Pg.222 , Pg.223 , Pg.224 , Pg.225 , Pg.226 , Pg.227 , Pg.228 , Pg.229 ]



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