摘要
用HNO3和HCl消解烟草样本，在pH为4.2的乙酸—乙酸钠介质中，微量硼与铍试剂Ⅲ形成紫红色络合物，方法灵敏度高，简便易掌握，方法检出限为0.04 μg/ml，线性范围为0～0.4 μg/ml，完全能满足烟草中微量硼的测定要求。
Nitrifying and dissolving tobacco samples by HNO3 and HCl, trace B and Be Reagent Ⅲ react and change into purplish red complex compound in acetic acid-sodium acetate medium with pH 4.2. The method, with high sensitivity, simplicity, detection limit 0.04 μg/ml, and linear range 0～ 0.4 μg/ml, can completely meet the needs of determination of trace B in tobacco.
出处
《湖南地质》
2002年第3期225-227,共3页
Hunan Geology
