Wei sheng yan jiu = Journal of hygiene research · 2007
[Study on determination of the xenoestrogens 4-nonylphenol and bisphenol A in vegetables using gas chromatography- mass spectrometry].
СтатьяПоддержка 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.
Du Huifang, Yan Huifang, Li Ye, Wang Juan
Аннотация
OBJECTIVE: To develop a simple and sensitive GC/MS method for the determination of 4-nonylphenol (4-NP) and bisphenol A (BPA) from vegetables.
METHODS: After smashed, the samples were extracted using ultrasonic extraction, and CH cartridge was used to clean the impurity, then desorbed with dichloromethane, the elution was chemically dried with anhydrous sodium sulphate and a silylation step was carried out with N,O-bis(trimethylsilyl) -trifluoroacetamide (BSTFA) to enhance the selectivity and sensitivity of the detection. Then the derivation were identified and quantified by GC-MS.
RESULTS: The linear range is from 10 to 500 microg/L for two target compounds with the correlation coefficient of 0.999, and the limit of detection(LOD) is 0.1microg/kg (4-NP) and 0.02 microg/kg (BPA), respectively. The spiked recoveries of two target compounds are ranged from 85.0% - 105.1%, and the precision are both below 10%.
CONCLUSION: This method has fairly high sensitivity and good precision, it can be used to detect the trace amount of 4-NP and BPA from vegetables.
METHODS: After smashed, the samples were extracted using ultrasonic extraction, and CH cartridge was used to clean the impurity, then desorbed with dichloromethane, the elution was chemically dried with anhydrous sodium sulphate and a silylation step was carried out with N,O-bis(trimethylsilyl) -trifluoroacetamide (BSTFA) to enhance the selectivity and sensitivity of the detection. Then the derivation were identified and quantified by GC-MS.
RESULTS: The linear range is from 10 to 500 microg/L for two target compounds with the correlation coefficient of 0.999, and the limit of detection(LOD) is 0.1microg/kg (4-NP) and 0.02 microg/kg (BPA), respectively. The spiked recoveries of two target compounds are ranged from 85.0% - 105.1%, and the precision are both below 10%.
CONCLUSION: This method has fairly high sensitivity and good precision, it can be used to detect the trace amount of 4-NP and BPA from vegetables.