CAJ | 학술논문

建立了高效液相色谱和电感耦合等离子体质谱联用技术测定水中砷形态的方法。对高效液相色谱和电感耦合等离子体质谱的实验条件如流动相的pH值及浓度、RF功率、采样深度、载气和补偿气流速等进行了优化。测定5种砷形态的线性范围为2.5～30.0μg／L，线性相关系数大于0.999，5种砷形态的检出限在0.10～0.15μg／L之间。对江、湖和河流3类地表水体样品分别加入2.0，5.0，15.0μg／L砷形态混合标准溶液进行回收试验，加标回收率为91.6%～104.5%，测定结果的相对标准偏差为1.5%~4.6%(n=6)。该方法灵敏、高效，适合于水中砷形态的测定。
건립료고효액상색보화전감우합등리자체질보련용기술측정수중신형태적방법。대고효액상색보화전감우합등리자체질보적실험조건여류동상적pH치급농도、RF공솔、채양심도、재기화보상기류속등진행료우화。측정5충신형태적선성범위위2.5～30.0μg／L，선성상관계수대우0.999，5충신형태적검출한재0.10～0.15μg／L지간。대강、호화하류3류지표수체양품분별가입2.0，5.0，15.0μg／L신형태혼합표준용액진행회수시험，가표회수솔위91.6%～104.5%，측정결과적상대표준편차위1.5%~4.6%(n=6)。해방법령민、고효，괄합우수중신형태적측정。
A method for the determination of arsenic species in water by high performance liquid chromatography and inductively coupled plasma mass spectrometry (HPLC–ICP–MS) was established. The working parameters were optimized including pH and concentration of mobile phase, RF power, sampling depth, carrier gas and compensating gas. Good linearity of 5 arsenic speciations was observed in the range of 2.5–30.0μg/L with correlation coefficient more than 0.999 and the detection limit of 0.10–0.15μg/L. The recovery of 5 arsenic speciations spiked at the concentration levels of 2.0, 5.0, 15.0μg/L was in the range of 91.6%–104.5%with the relative standard deviations of 1.5%–4.6%(n=6). The method is sensitive and effective, it is suitable for the determination of arsenic species in water.