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Abstract:
报道了以氨三乙酸为活化剂,以N-十二烷基二甲基铵基乙酸(DDMAA)为增敏剂,高碘酸钾氧化天青(Ⅱ)催化光度法测定痕量锰的新方法.本法在两性表面活性剂DDMAA存在下,灵敏度提高了3.3倍(锰量为 0.4~2.0 μg/L)和 5.6倍(锰量为2.0~6.0μg/L);相对标准偏差为1.3%(n=11),方法的检出限为5.2×10~(-11)g/mL.可用于茶叶中锰的测定.
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分析化学
ISSN: 0253-3820
CN: 22-1125/O6
Year: 1999
Issue: 03
Page: 350-353
1 . 2 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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