摘要
基于在磷酸 磷酸二氢钾缓冲溶液 (pH =2 0 )中 ,以钯 (Ⅱ )催化次亚磷酸钠还原孔雀绿褪色为指示反应 ,建立了测定痕量钯的动力学光度新方法。该方法的线性范围为 0～ 10 μg·L- 1 ,检出限为 9 78× 10 - 1 1g·mL- 1 。用于某些含钯催化剂样品的测定 ,结果满意。
A new kinetic-spectrophotometric method for the determination of trace amount of palladium has been proposed. It is based on the palladium catalysed discoloring reaction of malachite green reduced by sodium hypophosphite in phosphoric acid buffer solution (pH = 2.0). The linear range of determination of palladium is 0-10 mug . L-1, the detection Limit is 9.78 x 10(-11) g . mL(-1). The method has been used for the determination of palladium in some catalyst with satisfactory results. The mechanism of the reaction has also been discussed.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期110-112,共3页
Spectroscopy and Spectral Analysis
