云烟202中铜和锰的原子吸收光谱直接测定方法

Direct Determination of Copper and Manganese in Yunyan 202 by Atomic Absorption Spectrometry Using Secondary Sensitive Wavelength

报道了用次灵敏线原子吸收光谱法直接测定云烟202中高含量铜、锰的分析方法;解决了以往高铜、锰云烟202测定中,由于称样量小、稀释倍数过大所引起的分析误差。铜和锰的线性范围分别为0~24 mg/L和0~13 mg/L,相对标准偏差分别为0.43%和0.67%,加标回收率分别为96%~103%和97%~102%。该方法简便、快速、实用性强,已广泛应用于实际云烟202样品的分析,获得满意结果。

A method for the direct determination of copper and manganese in Yunyan 202 by flame atomic absorption spectrometry with secondary sensitive wavelength was developed.This method can greatly decrease the analytical errors caused by small amount of samples or big dilution multiple,so its accuracy is better than normal atomic absorption spectrometry using sensitive line when determining Cu-rich and Mn-rich Yunyan 202 samples.The detection limit of Cu-rich and Mn-rich were ranged between 0～24 mg/L and 0～13 mg/L...