CAJ | 학술논문

用固相微萃取(SPME)-气相色谱/质谱联用法测定饮用水中苯类化合物，以100μm PDMS(聚二甲基硅氧烷)萃取针提取、浓缩、分离与测定九种目标化合物.萃取时间经优化选定为8min，而热解析时间设定为2min.本方法的相对标准偏差小于5%，线性范围宽(20ng*ml-1—10000ng*ml-1)，多数化合物的检测限低于5μg*l-1.饮用水样品检测显示，样品加标回收率范围在84%至110%内.
용고상미췌취(SPME)-기상색보/질보련용법측정음용수중분류화합물，이100μm PDMS(취이갑기규양완)췌취침제취、농축、분리여측정구충목표화합물.췌취시간경우화선정위8min，이열해석시간설정위2min.본방법적상대표준편차소우5%，선성범위관(20ng*ml-1—10000ng*ml-1)，다수화합물적검측한저우5μg*l-1.음용수양품검측현시，양품가표회수솔범위재84%지110%내.
This paper presents determination of phenyl compounds in drinking water by solid phase microextraction(SPME)technique coupled with capillary gas chromatography.Headspace system has been used to optimize the extraction parameters.The extraction fiber coated with 100μm PDMS was selected to extract the related 9 target compounds.Extraction time was optimized and set at 8 min,while 2 min was chosen to be the thermal desorption time.Relative standard deviation(RSD) of the analytical method was found to be less than 5%,wide linear range was reached and limit of detection was less than 5 ng*ml-1 for most of the 9 analytes.Drinking water samples were tested,recovery range for the spiked samples was from 84% to 110%.GC/MSD was employed to finish qualitative study.It ends up with the conclusion that SPME is a fast,simple,solvent-free,sensitive and powerful technique to extract and determine phenyl compounds in drinking water.