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1·The technology of effervescent tablets made from calcium lactate, citric acid and sodium bicarbonate? Its optimum recipe and process were studied. The product have good flavor texture. and taste.

本文以乳酸钙、柠檬酸、碳酸氢钠为原料，研究了补钙泡腾片的制造工艺，确定了最佳配方和操作要点，得到口感、质地、风味较佳的产品。

2·The serum ionized calcium, citrate, bicarbonate, sodium, serum creatinine and urea concentration.

监测血清游离钙、枸橼酸、血钠、碳酸氢根浓度；

3·Ammonium sulphate with calcium carbonate as gross by-product could be obtained from the raw materials including phosphogypsum, ammonium bicarbonate and ammonia water.

以磷石膏、碳酸氢铵和氨水为原料制备硫酸铵，并用盐酸处理碳酸钙粗品制备氯化钙。