节点文献
微波消解-逐步多重线性回归分光光度法同时测定催化剂中钴和镍
SimultaneousDeterminationofCobaltandNickelinCatalystbyMicrowaveDigestionStepwiseMultipleLinearRegressionSpectrophotometry
【摘要】 研究并确定了微波消解的最佳工作条件,应用逐步多重线性回归对PARCo2+、Ni2+体系进行回归分析,快速、准确地测定了催化剂中钴和镍的含量。钴和镍的线性范围分别为0~30μg/25ml和0~25μg/25ml,合成样品回收率分别在963%~1009%和992%~1040%之间。Co2+和Ni2+含量测定结果的相对标准偏差分别≤34%和≤36%,相对误差分别在±25%和±20%之内。
【Abstract】 Inthispaper,catalystsamplesweredigestedinamicrowavedigestionsystemandinclosedvesselTheinfluenceoftheamountofvariousacidanddifferentdigestionconditionwasstudiedTheoptimumparameterformicrowavedigestionandmeasuringconditionswereselectedThecontentsofcobaltandnickelincatalystcanbecalculatedrapidlyandaccuratelybystepwisemultiplelinearregressionThelinearrangeis030g/25mlforCo2+and025g/25mlforNi2+TherecoveryofCo2+andNi2+insyntheticsamplesarebetween963%1009%and992%1040%,respectivelyTherelativestandarddeviationofanalyticalresultsincatalystsamplesislessthan34%forCo2+andlessthan36%forNi2+,andrelativeerrorislessthan25%andlessthan20%,respectively
【Key words】 microwavedigestion; stepwisemultiplelinearregression; catalyst; cobalt; nickel;
- 【文献出处】 石油化工 ,PETROCHEMICAL TECHNOLOGY , 编辑部邮箱 ,1999年05期
- 【分类号】O614.81,O614.81
- 【被引频次】2
- 【下载频次】51