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To assess compost CO2, I sealed compost with NAOH solution. So how can I titrate incubated NAOH solution to predict CO2 content? (Titrant, Indicator & Endpoint)
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For the attached model TKN assembly. I digested composted sample in that flask itself. My receiving solution (4%boric acid+Methyl red&bromocrescol green mixed indicator) already in red colour....
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To find nitrate nitrogen, I follow UV spectrophotometry method using PC based double beam spectrophotometer device. While I prepare standard solution Brucine sulphate+Sulfanilic acid did't give...
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whether soil should be shaken by adding some quantities of water or acid.?
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In nitrate nitrogen analysis, for nitrate stock solution, if 72.2 mg potassium nitrate added in smf & made upto 100 ml by adding distilled water gets 100 ppm can you explain how? and in that...
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