如何检测多元复混肥中的锌，可用原子吸收光谱法和双硫腙分光光度法。原子吸收光谱法分析精度高、速度快，但仪器贵不易普及。作者经方法比较试验，认为双硫腙分光光度法只要掌握好试剂提纯、试样称量、标准系列和试液浓度、显色时间以及测定过程中的萃取技术，分析结果与原子光谱法无显著差异．适于推广。 How to Detect Zinc in Multiple Compound Fertilizers by Atomic Absorption Spectrometry and Dithizone Spectrophotometry. Atomic Absorption Spectrometry analysis of high precision, fast, but the instrument is not easy to universal. The author of the method comparison test, that the dithizone spectrophotometric method as long as the master reagent purification, sample weighing, standard series and test solution concentration, color time and determination of the extraction process, the analysis results and atomic spectroscopy no significant difference. Suitable for promotion.