作了测试管法与分光光度法的对比测定，表明两种方法测定结果基本相同，相对误差在10%以内，满足了现场监测需要。

Test was taken for comparing the method of test tube and spectrophotometry, their detecting result were almost same, relative error was within 10%. It can be used for in-site detect.

youdao

作了测试管法与分光光度法的对比测定，表明两种方法测定结果基本相同，相对误差在10%以内，满足了现场监测需要。

Test was taken for comparing the method of test tube and spectrophotometry, their detecting result were almost same, relative error was within 10%. It can be used for in-site detect.

youdao