摘要
以干土壤做气相色谱固定相，用测定气相色谱固定液相对极性的方法，测定了广州、四川云阳、太原、乌鲁木齐等地区的６种土壤相对表观极性（ＳＲＰ），及其基本性质。结果表明：ＳＲＰ（ｙ）与土壤有机质含量（ｘ_１）、［Ｏ＋Ｎ］含量（ｘ_２）呈正相关，与粘粒（＜０．０１ｍｍ）含量（ｘ_３）呈负相关，其关系式为ｙ＝５４．２７０５＋１７．７６９８ｘ_１＋０．１８３４ｘ_２－０．２０１４ｘ_３，相关系数γ分别为０．９９８０、０．９４６３、－０．８７９２（ｎ＝６，Ｐ＜０．０５）；随着ＳＲＰ值的增加，萘和硝基苯的有机质吸附系数Ｋ_（ｏｍ）下降。
The soil relative apparent polarity(SRP) was determined form samples of the dry soils of 6 areas in Guangzhou,Tai Yuan and others with GC stationary phase method.At the same time, the properties in the soils were measured. The results show that the SRP(y) is of positive relation to both the content(x_1) of organic matter and the sum(x_2) of oxygen and nitrogen in soil;and is of negative relation to clay(<0.01mm)(x_3)in soil as shown in the equation y=54.2705 + 17.7698x_1 + 0.1834x_2 -0.2014x_3 with the relation coefficient of 0.9980,0.9463-0.8792(n=6,P<0.05) respectively.The effect of SRP on the adsorption of naphathalene and nitrobenzene has been studied,and it is shown that the adsorption is decreased with increase of the SRP.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1994年第2期81-84,共4页
China Environmental Science
关键词
土壤
相对表观极性
有机污染物
Soil
Relative apparent polarity
Organic pollutant
Adsorption
GC method.
