Wei sheng yan jiu = Journal of hygiene research · 2010
[Study of sample collection and analysis methods for the hydrogenated terphenyl in workplace air].
Аннотация на английскомСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Yu Suxia, Chai Jianrong, Ruan Zheng, Zhu Haibao, Zhang Xing
Аннотация
OBJECTIVE: To establish solvent desorption gas chromatographic method for determination of hydrogenated terphenyl in workplace air.
METHODS: According to standards of methods for determination of toxic substances in workplace air, hydrogenated terphenyl in the air was first adsorbed by activated carbon, desorbed by carbon disulfide, and determined by gas chromatography, then quality was used with retention time and quantitation was used by the sums of peaks area.
RESULTS: The method presented linear relationship within the ranges of 6-60 microg/ml. The relative standard deviations (RSD) were 1.3%-2.0% and the detection limits were 1.2 microg/ml. The desorption efficiencies were 89.3%-95.4%. Sampling efficiencies were 100% and the breakthrough volumes were beyond 6.7 mg in a 100 mg active carbon with glass wool. The samples in active carbon tubes could be stored for 7 days at room temperature and its repetition was good. Other solvents in the air such as coexisting diphenyl, ortho-, meta-, para-terphenyls had no interferences in this method.
CONCLUSION: The method could meet with the requirements of Standards of methods for determination of toxic substances in workplace air and be feasible for determination of hydrogenated terphenyl in workplace air.
METHODS: According to standards of methods for determination of toxic substances in workplace air, hydrogenated terphenyl in the air was first adsorbed by activated carbon, desorbed by carbon disulfide, and determined by gas chromatography, then quality was used with retention time and quantitation was used by the sums of peaks area.
RESULTS: The method presented linear relationship within the ranges of 6-60 microg/ml. The relative standard deviations (RSD) were 1.3%-2.0% and the detection limits were 1.2 microg/ml. The desorption efficiencies were 89.3%-95.4%. Sampling efficiencies were 100% and the breakthrough volumes were beyond 6.7 mg in a 100 mg active carbon with glass wool. The samples in active carbon tubes could be stored for 7 days at room temperature and its repetition was good. Other solvents in the air such as coexisting diphenyl, ortho-, meta-, para-terphenyls had no interferences in this method.
CONCLUSION: The method could meet with the requirements of Standards of methods for determination of toxic substances in workplace air and be feasible for determination of hydrogenated terphenyl in workplace air.