9 research outputs found
Прогнозирование режимов работы дожимной компрессорной станции на Х нефтегазоконденсатном месторождении (ЯНАО)
Get PDFРасчет оптимизационного варианта режима работы дожимной компрессорной станции. Анализ режимов работы дожимной компрессорной станции.Calculation of the optimization variant of the booster compressor station operation mode. Analysis of the operation modes of the booster compressor station
Innere Bisphenol-A-Belastung von Beschäftigten der Elektroindustrie beim Umgang mit Epoxidharzen
No full textSensitive and accurate analyses of free 3-nitrotyrosine in exhaled breath condensate by LC–MS/MS
No full textToluene, ethylbenzene and phenol – Determination of o‐cresol, m‐cresol, 2‐ethylphenol, 4‐ethylphenol and phenol in urine using gas chromatography‐mass spectrometry : Biomonitoring Methods, 2011
No full textToluol, Ethylbenzol und Phenol – Bestimmung von o‐Kresol, m‐Kresol, 2‐Ethylphenol, 4‐Ethylphenol und Phenol in Urin mittels Gaschromatographie‐Massenspektrometrie : Biomonitoring Methods in German language, 2011
No full textLead and its compounds – Determination of δ‐aminolevulinic acid in urine by HPLC with fluorescence detection : Biomonitoring Methods, 2018
No full textThe working group “Analyses in Biological Materials” of the Permanent Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area verified the presented biomonitoring method. The method described hereinafter permits the determination of δ‐aminolevulinic acid (ALA) in urine as a biological marker of effect to assess exposure to lead. An indicator of such exposure is the increased urinary excretion of ALA caused by lead‐induced inhibition of the enzyme δ‐aminolevulinic acid dehydratase. The determination of ALA in urine is based on a condensation reaction of ALA with formaldehyde and acetylacetone yielding a pyrrolizine derivate, which can be sensitively detected using fluorescence detection. 6‐Amino‐5‐oxohexanoic acid is used as an internal standard. Calibration standards are prepared in pooled urine and processed in the same way as the samples to be analysed. The method was extensively validated and the reliability data were confirmed by two independent laboratories, which have established and cross‐checked the whole procedure
Blei und seine Verbindungen – Bestimmung von δ‐Aminolävulinsäure in Urin mittels HPLC‐Fluoreszenzdetektion : Biomonitoring Methods in German language, 2018
No full textThe working group “Analyses in Biological Materials” of the Permanent Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area verified the presented biomonitoring method. The method described hereinafter permits the determination of δ‐aminolevulinic acid (ALA) in urine as a biological marker of effect to assess exposure to lead. An indicator of such exposure is the increased urinary excretion of ALA caused by lead‐induced inhibition of the enzyme δ‐aminolevulinic acid dehydratase. The determination of ALA in urine is based on a condensation reaction of ALA with formaldehyde and acetylacetone yielding a pyrrolizine derivate, which can be sensitively detected using fluorescence detection. 6‐Amino‐5‐oxohexanoic acid is used as an internal standard. Calibration standards are prepared in pooled urine and processed in the same way as the samples to be analysed. The method was extensively validated and the reliability data were confirmed by two independent laboratories, which have established and cross‐checked the whole procedure
