电感耦合等离子体光谱仪测定锂电池三元材料中硫的干扰分析
Interference analysis of sulfur determination in ternary materials of lithium battery by ICP-OES
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摘要: 本文针对电感耦合等离子体光谱仪（ICP-OES）测定锂电池三元材料中硫元素时的干扰问题，分别研究了镍、钴、锰等个元素对硫元素180.669、181.972、182.562 nm的3个波长的光谱干扰.结果表明，钴对3条波长没有干扰，镍和锰在180.669 nm处有重叠光谱干扰，干扰系数分别为0.024/100，0.172/100，锰在181.972 nm处有重叠光谱干扰，干扰系数为0.248/100，通过与实际样品的测定结果对比，用干扰系数计算得到的数值与真实值一致，说明了干扰的真实性.Abstract: The effects of Ni, Co, Mn on sulfur were studied at 180.669 nm, 181.972 nm and 182.562 nm respectively in order to solve the problem of interference in the determination of S in ternary materials for lithium batteries by ICP-OES. The results show that Co has no interference on the three wavelengths. The interference coefficients of Ni and Mn are 0.024/100 and 0.172/100 at 180.669 nm. The interference coefficient of Mn is 0.248/100 at 181.972 nm. And the value calculated by the interference coefficient is consistent with the real value.
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Key words:
- lithium battery /
- ternary materials /
- sulfur /
- spectral interference
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