Results Utilizing lactic acid dissolution and alcohol precipitation technology could prepare granules of chitosan lactate, which had characteristic absorption peak in infrared spectrum.
结果利用乳酸溶解和醇沉淀工艺可制备出壳聚糖乳酸盐颗粒，在红外光谱中具有特征性吸收峰。
2
The major influential factors of the changes are the atmospheric temperature, precipitation, plant absorption, the activity of soil microbe and so on.
影响这种变化的因素，主要是气温、降水、作物吸收和土壤微生物的活性等。
3
After the precipitation was dissolved in hydrochloric acid, indium, bismuth and lead in zinc, zinc powder and zinc carrot were determined by atomic absorption spectrometer.