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作者将果汁用硫酸-硝酸分解,待残留物定容后用氢化物-原子分光光度法及苯基荧光酮-分光光度法测定消化液中的锡。实验方法如下: 原子分光光度法(AAS法) 1.仪器AA-782原子分光光度计;锡空心阴极灯(灯电流20mA,波长224.6nm)、
The authors decompose fruit juice with sulfuric acid - nitric acid and determine the content of tin in the digestion solution by hydride generation - atomic spectrophotometry and phenylfluorone spectrophotometry until the residue is fixed. The experimental methods are as follows: Atomic spectrophotometry (AAS method) 1. Instrument AA-782 atomic spectrophotometer; tin hollow cathode lamp (lamp current 20mA, wavelength 224.6nm),