CAJ | 학술논문

用玻璃（或石英）纤维滤膜采集环境空气样品，在氢氟酸和浓硝酸溶液中消解澄清，用电感耦合等离子体质谱法（ ICP－MS）测定含量。结果表明，进口滤膜重金属本底值较低且均一，更适合于环境空气中重金属监测。标准品滤膜E023－1125测定值均在认定值附近，相对误差在0．308％～4．96％之间，加标回收率在95．7％～107％之间，检出限在0．115～3．98 ng／m3之间，满足日常环境监测分析要求。
용파리（혹석영）섬유려막채집배경공기양품，재경불산화농초산용액중소해징청，용전감우합등리자체질보법（ ICP－MS）측정함량。결과표명，진구려막중금속본저치교저차균일，경괄합우배경공기중중금속감측。표준품려막E023－1125측정치균재인정치부근，상대오차재0．308％～4．96％지간，가표회수솔재95．7％～107％지간，검출한재0．115～3．98 ng／m3지간，만족일상배경감측분석요구。
The air sample was collected by a glass or quarts fiber filter, which was digested with hydrofluoric acid and concentrated nitric acid in order to dissolve the filter and adsorb particles completely.The metal concentration of resulting sample was determined using ICP-MS.The results showed that the background concentration of heavy metals in the imported filter was lower and more uni-form than that in the domestic filter, and the imported filter was more suitable for measuring heavy metals in ambient air.The meas-urement values of the standard membrane E023-1125 were around the identified values, with a relative error range of 0.308%~4.96%and a recovery range of 95.7% ~107%.The detection limits of the metal elements ranged from 0.115 ng/m3 to 3.98 ng/m3 , which fully met the requirements of the daily environmental monitoring analysis.