其标准值和不确定度是由多家实验室用分光光度法和液相色谱法进行分析测定，并经数理统计处理后确定的。
The certified value and uncertainty were based on the analytical results of eight labs by SP and HPLC method.
用二甲酚橙作显色剂、72型分光光度计进行血清锌检测，方法简便，适合医院化验室使用。
With xylenol orange as developer and model 721 spectrophotometer, it is simple and easy to measure human serum zinc concentration, which is suitable for hospital laboratories.
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