除草剂
液相色谱http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&client=pub-1549238212314499&prog=aff&channel=8696049412&q=%E9%99%A4%E8%8D%89%E5%89%82%E3%80%80%E6%B6%B2%E7%9B%B8%E8%89%B2%E8%B0%B1&btnG=Google+%E6%90%9C%E7%B4%A2
除草剂
气相色谱http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&client=pub-1549238212314499&prog=aff&channel=8696049412&q=%E9%99%A4%E8%8D%89%E5%89%82%E3%80%80%E6%B0%94%E7%9B%B8%E8%89%B2%E8%B0%B1&btnG=Google+%E6%90%9C%E7%B4%A2