CAJ | 학술논문

介绍了砷锑钼蓝光度法测定外购生铁中砷含量,在现有分析方法上加以改进,在称样之前将生铁粉在高温马弗炉内灼烧1h左右除去 C.之后,对溶样温度控制范围在200℃左右,溶样过程的冒烟时间进行了实验和比较,并研究了抗坏血酸保存时间对测定结果的影响,确定了线性范围和测定检出限,将其它方法定值过的样品与测定结果进行比较,证明方法可行.通过实验,本方法的准确率在国家标准范围内,砷的相对标准偏差<4%,适用于外购生铁中砷含量的测定.
개소료신제목람광도법측정외구생철중신함량,재현유분석방법상가이개진,재칭양지전장생철분재고온마불로내작소1h좌우제거 C.지후,대용양온도공제범위재200℃좌우,용양과정적모연시간진행료실험화비교,병연구료항배혈산보존시간대측정결과적영향,학정료선성범위화측정검출한,장기타방법정치과적양품여측정결과진행비교,증명방법가행.통과실험,본방법적준학솔재국가표준범위내,신적상대표준편차<4%,괄용우외구생철중신함량적측정.
@@@@Thispapertalksaboutdeterminationarseniccontentofoutsourcingpigironwithspectropho-tometry.Thepigironpowderwasburnedinhightemperaturemufflefurnaceaboutonehour,thencarbon wasremoved.Methodresearchinvolvesthetemperatureofsampledissolution,whichiscontrolledaround 200℃.theprocessofsmoketimeofsampledissolutionwasexperimentedandcompared,andalsore-searchesthedeterminationresultsinfluencedbystoragetimeofascorbicacid.therangeoflinearitywas confirmed,aswellas,detectionlimitedwasdeterminated.Comparedthedeterminationresultswithsam-plevaluedbyothermethodwhichconfirmedthemethodisfeasible.Theaccuracyofthemethodiswithin thenationalstandardreferenceranges.RSDofarsenicislessthan4%,whichissuitablefordetermina-tionarseniccontentofoutsourcingpigironwithspectrophotometry.