当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
2期
429-431
,共3页
湿法消解%黄山香榧%硒%汞
濕法消解%黃山香榧%硒%汞
습법소해%황산향비%서%홍
Wet digestion%Huangshan torreye grandis%Selenium%Mercury
采用电热板加热，硝酸-高氯酸混合酸消解黄山香榧等四种坚果样品，用氢化物发生-原子荧光法及冷蒸气原子荧光法分别测定样品中的痕量硒和汞，初步确定了硒和汞的最佳测定条件，以及方法的检出限、精密度和最佳线性范围。实验结果表明，所采集的黄山香榧具有最高的硒汞比值及特殊的食用价值。
採用電熱闆加熱，硝痠-高氯痠混閤痠消解黃山香榧等四種堅果樣品，用氫化物髮生-原子熒光法及冷蒸氣原子熒光法分彆測定樣品中的痕量硒和汞，初步確定瞭硒和汞的最佳測定條件，以及方法的檢齣限、精密度和最佳線性範圍。實驗結果錶明，所採集的黃山香榧具有最高的硒汞比值及特殊的食用價值。
채용전열판가열，초산-고록산혼합산소해황산향비등사충견과양품，용경화물발생-원자형광법급랭증기원자형광법분별측정양품중적흔량서화홍，초보학정료서화홍적최가측정조건，이급방법적검출한、정밀도화최가선성범위。실험결과표명，소채집적황산향비구유최고적서홍비치급특수적식용개치。
Determination of trace selenium and mercury in four Chinese nuts including huangshan torreye grandis by using electric hot plate heating and nitric-perchloric acid digestion was carried out by hydride generation atomic fluorescence spectrometry and cold vapor atomic fluorescence. The optimal determination conditions of selenium and mercury were determined. The detection limits, RSD, recoveries and the linear ranges were also studied. The results show that, there is the highest ratio of Se/Hg in torreye grandis from mount huangshan, so this kind of nut has some special edible value.
