岩矿测试
巖礦測試
암광측시
ROCK AND MINERAL ANALYSIS
2010年
2期
139-142
,共4页
张明杰%戴雪峰%陆丁荣%王杰
張明傑%戴雪峰%陸丁榮%王傑
장명걸%대설봉%륙정영%왕걸
碳%硫%高频燃烧-红外吸收法%农用地土壤
碳%硫%高頻燃燒-紅外吸收法%農用地土壤
탄%류%고빈연소-홍외흡수법%농용지토양
carbon%sulfur%high frequency-infrared absorption spectrometry%farmland soil
应用高频燃烧-红外碳硫分析仪测定农用地土壤质量调查样品中碳、硫的含量,解决了土壤样品中碳、硫测定过程中存在的基体影响和低电磁感应等问题.对样品称样量、助熔剂的加入量、氧气流量等测定条件进行优化试验,用国家一级标准物质验证了方法准确度和精密度,相对误差(RE)小于10%,相对标准偏差(RSD,n=8)总碳小于2%,硫小于9%.方法能够满足农用地土壤质量调查样品的分析质量要求.
應用高頻燃燒-紅外碳硫分析儀測定農用地土壤質量調查樣品中碳、硫的含量,解決瞭土壤樣品中碳、硫測定過程中存在的基體影響和低電磁感應等問題.對樣品稱樣量、助鎔劑的加入量、氧氣流量等測定條件進行優化試驗,用國傢一級標準物質驗證瞭方法準確度和精密度,相對誤差(RE)小于10%,相對標準偏差(RSD,n=8)總碳小于2%,硫小于9%.方法能夠滿足農用地土壤質量調查樣品的分析質量要求.
응용고빈연소-홍외탄류분석의측정농용지토양질량조사양품중탄、류적함량,해결료토양양품중탄、류측정과정중존재적기체영향화저전자감응등문제.대양품칭양량、조용제적가입량、양기류량등측정조건진행우화시험,용국가일급표준물질험증료방법준학도화정밀도,상대오차(RE)소우10%,상대표준편차(RSD,n=8)총탄소우2%,류소우9%.방법능구만족농용지토양질량조사양품적분석질량요구.
A method for rapid determination of carbon and sulfur in farmland soil samples by high frequency-infrared absorption spectrometry was reported in this paper. The analytical conditions such as sample amount, flux added, oxygen flow rate, etc. have been tested and optimized. The accuracy and precision of the method were tested and accuracy of RE<10%, precision of <2% RSD for total carbon (n=8) and <9% RSD for sulfur (n= 8) were obtained. The method solves the problems such as matrix effect and low electromagnetic response in the determination of carbon and sulfur in soil samples. The method has been applied to the determination of carbon and sulfur in farmland soil samples with satisfactory results.