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植物材料的冷冻蚀刻制样过程中遇到的技术难处是很多的。我们采用减压蒸发冷却法制备的液氮泥作样品的高速冷却剂、用5～10M高浓度铬酸作试样的腐蚀剂和在用聚四氟乙烯材料制成的凹型器皿中将样品进行腐蚀和漂洗复型膜。用以上改善的方法制备的样品没有冰晶,腐蚀彻底的复型膜不卷曲、制样成功率极高。
Cryogenic etching of plant materials Sample preparation process encountered many technical difficulties. We use the low pressure evaporative cooling method for the preparation of liquid nitrogen mud as a sample of high-speed coolant, with 5 ~ 10M high concentrations of chromic acid as a sample of etchant and in the use of PTFE material made of concave vessels corrosion samples And rinse double membrane. The sample prepared by the above improvement method has no ice crystals, and the complete coating film does not curl and the sample preparation rate is extremely high.