大气、水和土壤中痕量汞的测定,国内外大都采用冷蒸气技术的原子吸收分光光度法,此法灵敏度较高,但需专用设备。汞的荧光光度测定常用的试剂有罗丹明B、丁基罗丹明B、烟酰胺——腺嘌呤——双核甙酸和硫胺素等,它们的灵敏度较原子吸收分光光度法为低,选择性也都比较差。 Determination of trace mercury in the atmosphere, water and soil, atomic absorption spectrophotometry mostly using cold vapor technology at home and abroad, this method has higher sensitivity, but need special equipment. Fluorescence photometry commonly used mercury reagents rhodamine B, butyl rhodamine B, nicotinamide - adenine - dinucleotide and thiamine, their sensitivity is lower than the atomic absorption spectrophotometry, the selectivity Also worse.