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彭红卫, 张佩瑜. 悬浮液进样石墨炉原子吸收光谱法测定地质样品中痕量镓和铊[J]. 岩矿测试, 1994, (2): 96-100.
引用本文: 彭红卫, 张佩瑜. 悬浮液进样石墨炉原子吸收光谱法测定地质样品中痕量镓和铊[J]. 岩矿测试, 1994, (2): 96-100.
GFAAS Determination of Trace Gallium and Thallium in Geological Samples by Introducing the Sample as a Suspending Liquid[J]. Rock and Mineral Analysis, 1994, (2): 96-100.
Citation: GFAAS Determination of Trace Gallium and Thallium in Geological Samples by Introducing the Sample as a Suspending Liquid[J]. Rock and Mineral Analysis, 1994, (2): 96-100.

悬浮液进样石墨炉原子吸收光谱法测定地质样品中痕量镓和铊

GFAAS Determination of Trace Gallium and Thallium in Geological Samples by Introducing the Sample as a Suspending Liquid

  • 摘要: 对固体悬浮液直接进样及石墨炉原子吸收光谱法测定Ga和Tl进行了研究,拟定了以琼脂为悬浮剂,Ni(对Ga)和V(对Tl)为基体改进剂,标准溶液进行校准的、灵敏、快速、准确测定Ga和Tl的方法。在选定条件下,测得Ga和Tl的特征量(1%吸收)分别为2.8×10 ̄(-11)g和4.4×10 ̄(-11)g,检出限(3σ)分别为24pg和28pg,相对标准偏差分别为6.3%(含Ga6.4g/g,n=11)和4.8%(含Tl1.0g/g,n=13)。方法适用于地质样品中低至0.1g/gGa和Tl的测定。

     

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