1) available Cd
有效态镉
1.
The available Cd in the soil was extracted by using four kinds of extracting solvent at different temperature,time and ratio of soil to solvent.
用４种提取剂在不同温度、时间和土液比条件下，对褐土有效态镉含量分别进行提取试验。
2.
It is essential to establish a suitable extraction method for available Cd for acid soils because the available, instead of total amounts of Cd are more and more frequently used as criteria for assessing soil environmental quality.
结果表明,不同提取剂对有效态镉的提取率明显不同,但都存在土壤全镉含量高提取率低,土壤全镉含量低提取率高的趋势;0。
2) soil available cadmium
土壤有效镉
3) effective cadmium cut off
有效镉截止值
4) available Pb
有效态铅
1.
According to the method for determination of available forms of heavy metals in soil extracted with DTPA,the amounts of available Pb and Cd in a soil was determined with atomic absorption spectrometer.
以DTPA为提取剂,用原子吸收分光光度计测定土壤中的有效态铅和镉,多次实验室间和实验室内的对比试验表明,其方法可靠,精密度和允许偏差都在国家标准允许范围内。
5) available
[英][ə'veɪləbl] [美][ə'veləbḷ]
有效态
1.
Effects of lime application rate on available copper and zinc content in single and complex polluted red and paddy soils;
石灰用量对污染红壤和黄泥土中有效态铜锌含量的影响
2.
Effects of three different modifiers on the content of available Hg,As in acid soil of south of china′s vegetable field;
土壤改良剂对南方酸性菜园土重金属汞、砷有效态含量的影响
3.
Study an the Extracting Condition for Available Cd and Content in Cultivated Soil of Guiyang City;
贵阳市耕地土壤中有效态Cd提取条件及其含量分析研究
6) available form
有效态
1.
One of those basic tools, the analysis of available form of heavy metals, was widely studied.
作为重要的研究手段之一,元素有效态的分析技术起着关键的基础作用。
补充资料：酒石酸镉
分子式：CdC4H4O6
CAS号：
性质： 白色粉末或晶状薄片。遇光敏感。相对密度(15℃)3.432。不溶于乙醇、丙酮和乙醚，微溶于水，溶于稀硝酸、氨水、氰化钾溶液。加热时逸出二氧化碳，留下焦酒石酸和银残渣。在氢氧化钠溶液中分解为氧化银。与干燥氯气作用生成氯化银。在70℃时与氨气反应可得碳酸铵。由适量的硝酸银溶液与酒石酸镉与温热酒石酸溶液作用而得。用作润肤品的增效剂。
CAS号：
性质： 白色粉末或晶状薄片。遇光敏感。相对密度(15℃)3.432。不溶于乙醇、丙酮和乙醚，微溶于水，溶于稀硝酸、氨水、氰化钾溶液。加热时逸出二氧化碳，留下焦酒石酸和银残渣。在氢氧化钠溶液中分解为氧化银。与干燥氯气作用生成氯化银。在70℃时与氨气反应可得碳酸铵。由适量的硝酸银溶液与酒石酸镉与温热酒石酸溶液作用而得。用作润肤品的增效剂。
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参考词条