WebAs a first step, do an extraction by dissolving both compounds in ether and washing the ether with a base such as saturated sodium bicarbonate solution. A student starts with 1.000 g of a mixture of compounds A and B. After extraction, the student isolates 0.200 g of compound A and 0.201g of compound B. Web12. apr 2024 · Soil pH was determined using a pH meter in the supernatant at a 5 : 1 water to soil ratio [ 30 ]. Soil organic matter (SOM) was determined using the potassium dichromate oxidation with an external heating method. Soil total N and alkaline N were determined by semi-automatic Kjeldahl N tester [ 31 ].
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