To test folic acid level in serum with the test strip according to the invention has the merits of simple operation, fast speed, sensitivity, high specificity, good application prospect and so on.

• 应用本发明所提供的试纸条检测人血清中叶酸水平，具有操作简单、快速、灵敏和特异性好等特点，具有良好的应用前景。