摘要
将分析纯物质配制成10μg/ml浓度，应用岛津UV-1601紫外分光光度计，在波长190~335nm内扫描溶液的吸收峰，结果表明，硝酸相盐物质在201nm处有一稳定的吸收峰，吸收值与浓度成良好的线性关系，相对于硝酸盐物质而言，亚硝酸钠吸收峰红移至210nm，CaSO4、SrCl2均呈现低吸收，但其吸收峰在【200nm的远紫外区，在该浓度下，NH4Cl、HCl和KCl均呈现低吸收，并集中在远紫外区，而KH2PO4和NH4F几乎没有吸收．
Chemicals were prepared to 10 μg/ml as water solution, and scanned in wavelength 190～335nm by Shimadzu UV-1601 spectrophotometer. It was showed that nitrates gained a stable absorbency peak at 201nm. There was a strictlinear relationship between absorbency and concentration. The peak by NaNO_2 was shifted to 210 nm. CaSO_4 and SrCl_2 got a relatively high absorbency in far ultra-violet zone (<200 nm). NH_4Cl, HCl and KCl showed a lowabsorbency in far ultraviolet zone, but absorbency by KH_2PO_4 and NH_4F could hardly be detected.
基金
中科院重大项目!KZ951-B1-110
中科院生态网络重大项目!"亚热带丘陵农林复合生态系统生产力形成机制"
中科院生物科学研究特别支持费资
