Improvement of identification method of nitrate an

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Improvement of identification method of nitrate and nitrite in drugs

it shows strong competitiveness in the market. Nitrate and nitrite in drugs have made indelible contributions to the reproduction and health of the Chinese nation. The identification of salt is not obvious in Pharmacopoeia [1]. According to the reaction principle of potassium permanganate and nitrite while paying attention to research and development, this paper improves it. Now it is introduced as follows:

1. The sales volume of new energy vehicles continues to grow rapidly, and the demand for lithium battery copper foil for power batteries is amplified. Materials are tested

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