Acknowledgement
Supported by : Korean Science and Engineering Foundation
Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)
- Volume 29 Issue 4
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- Pages.321-327
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- 1996
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
A Modified Back-Titration Method to Measure Soil Titration Curves Minimizing Exchange Acidity and Dilution Effects
토양 적정곡선 측정을 위하여 교환산도와 희석효과를 최소화한 수정역적정법 제안
- Jozefaciuk, G. (Institute of Agrophysics of Polish Academy of Sciences) ;
- Shin, Jae Sung (National Institute of Agricultural Science and Technology, Rural Development Administration)
- Published : 1996.12.30
Abstract
A back titration method was suggested to determine the exchangeable acidity of soil originated from exchangeable aluminum and adsorbed hydrogen ion in relation to minimizing its titration error. In this method. soils are treated by neutral salt solution whose concentration is the same as soil solution suspended by distilled water. And then. its pH is adjusted at 3, using 1 N HCl solution and back-titrated by 0.1 N NaOH solution containing 1 N NaCl. The results of the suggested back-titration showed the possibility of practical application with linear relationship to that of standard method.
교환성 알루미늄과 수소이온에 의한 토양의 교환산노를 적정과정중 희석에의한 적정상의 오차를 최소화한 역 정정법을 검토하였다. 이 방법은 증류수에 의한 현탁액과 동일한 농도의 중성염 용액으로 처리한 후 1N HCl로 pH3으로 맞춘 다음 1N NaOH고 조정된 용액으로 적정하는 방법이다. 이 방법과 표준법과 비교한 결과 평형곡선과 잘 일치하여 사용 가능성이 입증되었다.
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