全党动员,大办农业,为普及大寨县而奋斗的号召激励着全国人民,大家都在为农业学大寨的运动贡献一份力量,去年我们与云南植物所合作,为考查江川、易门等县红土中含锌情况进行了土壤中微量锌的分析试验工作。由于土壤中锌含量较低,一般比色法难于完成,我们采用玻璃碳汞膜电极的伏安溶出法,以导数极谱作图,不但图形良好便于测量,且灵敏度也较经典极谱法为更高,初步试验表明,方法 The mobilization of the entire Party and the establishment of agriculture and the call for the popularization of Dazhai County motivate the people of the whole country. All of us are making contributions to the campaign to teach agriculture in Dazhai. Last year we cooperated with Yunnan Institute of Botany to examine Jiangchuan, Door and other prefectures of red clay in the soil zinc in the analysis of experimental work. Due to the low content of zinc in the soil, the colorimetric method is generally difficult to complete. We use the voltammetry dissolution method of the glassy carbon-mercury film electrode to conduct the derivative polarography, which not only has a good shape and is easy to measure, but also has better sensitivity than the classical polarographic method Higher, preliminary tests show that the method