| 摘要: |
| 酸性溶液中重铬酸钾与土壤浸出液中还原性物质反应,生成等物质量的Cr(Ⅲ),利用Cr(Ⅲ)对碱性Lumino-H2O2化学发光体系的催化作用,间接测定土壤中还原性物质总量。与常规土壤分析法对照,该法灵敏度高,准确度好,适用于还原性物质较低的旱地耕土。最低检出限为4.62×10-7mol·L-1(1/3Cr3+),RSD<4.0％。 |
| 关键词: 化学发光分析,土壤化学分析,化学发光反应/还原性物质总量 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Chemiluminescence Determination of Total Contens of Reducing matters in Soil |
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Gao Xiangyang'''' Hu Shibin2 He Fang1 Pan Qingmei1,Gao Xiangyang'''' Hu Shibin2 He Fang1 Pan Qingmei1,Gao Xiangyang'''' Hu Shibin2 He Fang1 Pan Qingmei1
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| Abstract: |
| In acid solution， K2Cr207 reacted with reducing matters in soi1 can produce an equal amount of matters-Cr(Ⅲ) Total amount of reducing matters in soil can be indirectly determined using the efects of Cr(Ⅲ) upon the catalyzation of
Luminot-H2O2 chemiluminescence system，In contrast with the usual soi1 analytical method；this one is high in sensitivity，good in accurateness，and adaptable to the determination of trace reducing matters in soil of rainfed 1and．The 1owest detection 1imit is 4.62×10-7mol·L-1(1/3Cr3+)，RSD<4.0％． |
| Key words: chemiluminescence analysis, soil chemical analysis, chemiluminescence reactions/total contents of reducing matters |
