Velev S, Khristodorova V
Vet Med Nauki. 1976;13(2):72-7.
Some incorrect points are referred to of Part II of Bulgarian State Standard 6853-74 "Canned fruits, vegetables, meat, and meat-and-vegetables. Determining the content of stannum with the use of pyrocatecholviolet" rendering difficult the analytic process and leading to false results. Another method for the evaluation of the stannum content making use of pyrocatecholviolet has been applied instead as suggested by the International Federation of Chemists. It makes feasible the determination of even small amounts of stannum (0-30 mug) which are usually encountered in the food products. A mathematic and statistical processing of the results obtained has been made.
保加利亚国家标准6853 - 74“水果、蔬菜、肉类及肉菜罐头。用邻苯二酚紫测定锡含量”的第二部分存在一些错误之处，这使得分析过程变得困难并导致错误结果。取而代之的是，采用了国际化学联合会建议的另一种利用邻苯二酚紫评估锡含量的方法。这种方法使得测定食品中通常会遇到的微量锡（0 - 30微克）成为可能。已对所得结果进行了数学和统计处理。
