水质 生化参数测量 叶绿素a浓度的光谱测定

详细信息   

• 中文主题词：参数 ; 生化分析法 ; 光度测量法 ; 叶绿素 ; 浓缩 ; 水质 ; 含量测定
• 标准号：ISO 10260-1992
• 发布日期：1992-07-01
• 英文题名：Water quality; measurement of biochemical parameters; spectrometric determination of the chlorophyll-a concentration
• 英文主题词：Biochemical methods of analysis ; Chlorophyll ; Concentration ; Determination of content ; Parameters ; Photometry ; Water quality
• 标准状态：现行
• 发布单位：IX-ISO
• 国际标准分类号：13.060.50
• 载体形态：6P;A4
• 中国标准分类号：C51;Z16
• 国别：国际标准化组织

文摘

The procedure specified can be applied for phytoplankton in natural surface waters and for testing algal growth in bio-assays. Using appropriate sampling it can also be applied to phytobenthic communities. The principle is collection of algae by filtration, extraction of algal pigments, spectrometric determination of the chlorophyll-a concentration in the extract, evaluation of the chlorophyll-a and phaeopigment concentration from the difference of absorbance at 665 nm prior to and after acidification of the extract.