采用流动注射在线分离和电感耦合等离子体原子发射光谱法联用同时测定皮革中Cr(Ⅲ)和Cr(Ⅵ)的迁移量，通过交联淀粉微球分离柱，分离Cr(Ⅲ)和Cr(Ⅵ)并去除其他离子干扰，线性在0.1 mg/L~20 mg/L范围内。该方法精密度高，相对标准偏差为2.1%~3.7%，检出限为5μg/L，样品分析速度为30样/h。与传统的分光光度法相比，可以避免繁琐的样品处理，克服色度的干扰，具有灵敏度高，重现性好的特点，可满足测定皮革中Cr(Ⅲ)和Cr(Ⅵ)的检测要求。%Flow injection separation and inductively coupled plasma-atomic emission spectrometry were used to simultaneously determine the migration of Cr(Ⅲ) and Cr(Ⅵ) in leather. Cr(Ⅲ) and Cr(Ⅵ) were separated by a crosslinked starch microspheres separation column, which also removed other ion interference. The linearity was between 0.1 mg/L and 20 mg/L. As a high accuracy method, the relative standard deviation was between 2.1% and 3.7%, the detection limit was 5 μg/L, and the sample analysis rate was 30 samples/h. Compared with the traditional spectrophotometric method, the method could avoid tedious sample preparation, and overcome chroma interference. The method had a high sensitivity, good reproducibility. So it could be successfully applied for the determination of Cr (Ⅲ) and Cr (Ⅵ) in detection indicator of leather.
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