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This provides an opportunity to develop and practice colorimetric techniques, and to plot a calibration curve. 
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Guidance on how to prepare Benedict's quantitative solution. This is used for the quantitative analysis of reducing sugars. 
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Guidance on how to prepare and use of DNSA (or DNS) reagent for reducing sugars. The reagent may be used qualitatively or quantitatively (colorimetric method).
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Guidance on how to prepare enzyme 'solutions' from solid (powder) or liquid stock. Also includes guidance on the preparation of bile salts (sodium tauroglycocholate) solution.
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This document contains:An outline of colorimetryThe principles of the CLEAPSS colorimeterUsing a CLEAPSS colorimeter which has been set upSetting up the CLEAPSS colorimeterproducing a calibration curv.. more
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All-in-one pdf file of the CLP Recipe Sheets published (or updated) up to, and including, 15th November 2024.
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Gives guidance on general fieldwork including specific measurements and techniques. Detailed guidance is included on measuring substances in the soil, water and air, and electronic measurements such a.. more
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Showing results 1 to 7 of 7