CDF files for the negative mode

CDF files for the LC-MS analysis, for the negative mode, described in Sample Annotation_Urine Samples.xlsx, which are processed by running the code in 0.process_with_XCMS.R, followed by 0_1.process_CAMERA.R.用于负离子模式下液相色谱-质谱联用（Liquid Chromatography-Mass Spectrometry，简称LC-MS）分析的CDF文件，其样本注释信息记载于《Sample Annotation_Urine Samples.xlsx》中，此类文件通过依次运行0.process_with_XCMS.R与0_1.process_CAMERA.R中的代码完成处理。