CAJ | 학술논문

应用电感耦合等离子体发射光谱法（IC P-A ES ）建立了定量分析车用汽油中氯的新方法。方法选择航空煤油作为稀释剂，按稀释剂：样品为4∶1（体积比）进行稀释。选取波长134.724 nm为分析谱线，在辅助气中引入0.050 L?min－1氧气，有效的消除积碳，保持等离子体稳定。方法考察了发射功率，雾化气流量，辅助气流量以及氧气流量对氯信背比的影响，确定了ICP-AES的最佳分析条件，通过标准加入法校正基体效应和信号漂移对测量所造成的影响。方法的加标回收率在96.6％～103.9％之间，相对标准偏差（RSD ，n＝10）在1.57％～4.49％之间，方法检出限为0.27 mg?L －1。此方法和微库仑法对样品中有机氯的测定结果基本一致，而且，该方法具有不受元素的存在形态限制的优点，测定的结果为总氯（有机氯和无机氯）含量。方法简便，快速，灵敏，拓展了IC P-A ES在非金属元素特别是卤素分析方面的应用，可用于车用汽油中氯含量的日常检测，为车用汽油的质量评价提供技术保障。
응용전감우합등리자체발사광보법（IC P-A ES ）건립료정량분석차용기유중록적신방법。방법선택항공매유작위희석제，안희석제：양품위4∶1（체적비）진행희석。선취파장134.724 nm위분석보선，재보조기중인입0.050 L?min－1양기，유효적소제적탄，보지등리자체은정。방법고찰료발사공솔，무화기류량，보조기류량이급양기류량대록신배비적영향，학정료ICP-AES적최가분석조건，통과표준가입법교정기체효응화신호표이대측량소조성적영향。방법적가표회수솔재96.6％～103.9％지간，상대표준편차（RSD ，n＝10）재1.57％～4.49％지간，방법검출한위0.27 mg?L －1。차방법화미고륜법대양품중유궤록적측정결과기본일치，이차，해방법구유불수원소적존재형태한제적우점，측정적결과위총록（유궤록화무궤록）함량。방법간편，쾌속，령민，탁전료IC P-A ES재비금속원소특별시서소분석방면적응용，가용우차용기유중록함량적일상검측，위차용기유적질량평개제공기술보장。
A new method was studied for the analysis of chlorine in gasoline by inductively coupled plasma atomic emission spec-trometry (ICP-AES) .Samples werediluted 1+ 4(φ) with kerosene .The intense spectral line for chlorine (134.724 nm) was used .In order to eliminate carbon and maintain stable plasma ,small amounts of oxygen (0.050 L?min-1 ) were added to the auxiliary gas .The instrumental main condition was optimized in terms of effects of generator power ,nebulizer gas flow ,auxilia-ry gas flow ,and oxygen flow on SBR for chlorine .Standard addition method was used to compensate matrix effect and signal drift .The recovery for spiking gasoline samples and the limit of detection were in the range of 96.6% ~103.9% and 0.27 mg?L -1 respectively .The relative standard deviation (RSD) was between 1.57% and 4.49% .Compared with microcoulometry ,the analysis results of organic chlorine were basically the same .Moreover ,chlorine content ,including organic chlorine and inorganic chloride was determined by ICP-AES .The proposed method had the advantages of simplicity ,speediness and sensitivity ,and ex-panded the ICP-AES application in non-metals especially halogen elements .It can be used for the analysis of chlorine in gasoline and provides technical support for quality evaluation .