Low levels of cationic polyelectrolytes in water sample are determined by the direct fluorescent method, the results are satisfactory.
此法测定水样中低含量聚合电解质，结果令人满意。
Objective: To establish a rapid and highly sensitive fluorescent method suitably used for clinical detection of sialic acid in serum samples.
目的：建立一种快速而灵敏的荧光分析法用于临床上血清涎酸分析测定。
It was pointed out that the crackles produced on vessels operating under wet H2S circumstance can only be detected effectively by the wet magnetic powder fluorescent method.
指出，只有采用湿萤光磁粉探伤法才能有效地检查在湿硫化氢环境下操作的容器可能产生的裂纹。
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