1) Tessier sequential extraction method
Tessier逐步提取法
2) sequential extraction method
逐步提取法
1.
The soil polluted by heavy-metal was selected as the soil samples and added NaOH solution,CaO solid,Na2S solution,Na2CO3 solid, C9H7NO solution,and different chemical forms of Pb were extracted with sequential extraction method.
以被重金属污染的农田土壤为样品,分别加入NaOH溶液、CaO固体、Na2S溶液、Na2CO3固体、C9H7NO溶液作为改良剂,采用逐步提取法对土壤中重金属Pb的相态进行浸提和萃取,采用原子吸收光谱法测定提取液中每种形态铅的浓度;最后分析了土壤中Pb在不同的实验环境下的含量。
3) Tessier sequential extraction procedure
Tessier连续提取法
1.
[Method] The concentration and the chemical speciation of Cu in urban soils of Urumqi were studied by using Tessier sequential extraction procedures.
[方法]采取Tessier连续提取法,对乌鲁木齐市6种不同功能区表层土壤中Cu的含量及其化学形态分布进行了研究。
2.
[Method]Total contents and five chemical fractions of copper,lead and zinc in two representational cropland deep soils collected from Mount Lotus mine area in eastern Guangdong were analyzed using Tessier sequential extraction procedure.
[方法]选取广东某金属硫化物矿区外围2个代表性的农田深层土壤样品,运用Tessier连续提取法分析其铜、铅和锌的总量和5种化学形态。
4) Tessier's sequential extraction procedure
Tessier连续萃取法
5) Tessier extraction
Tessier法
6) four-step extraction
四步提取法
1.
Methods and Results: Details of the "four-step extraction" of in-gel digestion were discussed in this paper.
方法:将改进的胶内酶切“四步提取法”,应用到96个双向电泳蛋白质斑点分析。
补充资料:逐步模糊聚类法
分子式:
CAS号:
性质:又称动态模糊聚类法。选定一批聚类中心,其指标能反映该类的特征,将样本向最近的聚类中心聚类。再根据分类结果确定新的聚类中心,其各项指标为该类中所有样本的相应指标的平均值。然后计算前后两聚类中心的差异,如差异大于某一阈值,说明分类不合理,需修改分类,即以新的聚类中心代替旧的聚类中心,直到前后两聚类中心的差异小于某一阈值,认为分类合理,从而终止分类过程。
CAS号:
性质:又称动态模糊聚类法。选定一批聚类中心,其指标能反映该类的特征,将样本向最近的聚类中心聚类。再根据分类结果确定新的聚类中心,其各项指标为该类中所有样本的相应指标的平均值。然后计算前后两聚类中心的差异,如差异大于某一阈值,说明分类不合理,需修改分类,即以新的聚类中心代替旧的聚类中心,直到前后两聚类中心的差异小于某一阈值,认为分类合理,从而终止分类过程。
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参考词条