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采用单反ATR测试了8例正常人和4例癌症患者指甲的红外光谱,并用聚类分析和t检验以及主成分分析法比较了正常人和癌症患者指甲谱带之间的区别。结果表明,患病年限较短的乳腺癌患者指甲和正常样本之间差别不突出;而患病年限较长的乳腺癌患者指甲与患病1～2年的乳腺癌患者指甲以及正常样本之间的差异则比较明显。直接通过指甲FTIR光谱来确诊癌症患者恐怕存在一定困难。
Infrared spectra of nails in 8 normal subjects and 4 cancer patients were measured by SLR ATR. The differences between nails bands in normal and cancer patients were compared using cluster analysis and t-test as well as principal component analysis. The results showed that there was no significant difference between the nails and normal samples of patients with breast cancer with shorter duration of illness. However, there was no significant difference between fingernails and normal samples of patients with breast cancer who had longer disease and those with 1-2 years of age The difference is more obvious. FTIR spectroscopy directly through the nail to diagnose cancer patients may have some difficulties.