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本文利用光致发光荧光光谱技术，对１６８例肝功障碍患者和１０６例胃癌患者的血卟啉变化进行了观察。发现肝功障碍及胃癌患者体内锌卟啉、原卟啉含量均明显高于对照组（Ｐ＜０．０１，Ｐ＜０．０１）。原卟啉峰Ⅰ值的阳性率分别为８９．２２％和９１．４１％。随机选择的９４例相对健康人组成的对照组，Ｉ值阳性率为２５．４４％。进行阳性率的ｔ检验，差异均有显著意义（Ｐ＜０．０１，Ｐ＜０．０１）。本方法有较高的敏感性，可考虑用该法对一些高危人群进行癌症初筛或作为肝功障碍的临床诊断指标之一。
In this paper, the use of photoluminescence fluorescence spectroscopy, 168 cases of liver dysfunction and 106 cases of gastric cancer in patients with hematoporphyrin changes were observed. Hepatic dysfunction and gastric cancer were found in patients with zinc porphyrin and protoporphyrin content were significantly higher than the control group (P <0.01, P <0.01). The positive rates of protoporphyrin I value were 89.22% and 91.41% respectively. 94 randomly selected control group of relatively healthy people, I-value positive rate was 25.44%. The positive rate of t test, the difference was significant (P <0.01, P <0.01). This method has a high sensitivity, can consider using this method for some high-risk groups for cancer screening or liver function disorders as one of the clinical diagnostic indicators.