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  Indian J Med Microbiol
 

Figure 1: High-performance liquid chromatography profile of methanol stored in polypropylene microcentrifuge tubes at: (a) 1 day (b) 2 days (c) 4 days (d) 8 days (e) 10 days (f ) 20 days (g) 40 days (h) 80 days and (i) histogram with area under curve and retention time of contaminant peak at different time intervals: (j) reversed phase-high performance liquid chromatography profile of methanol in glass vial stored for 10 days

Figure 1: High-performance liquid chromatography profile of methanol stored in polypropylene microcentrifuge tubes at: (a) 1 day (b) 2 days (c) 4 days (d) 8 days (e) 10 days (f ) 20 days (g) 40 days (h) 80 days and (i) histogram with area under curve and retention time of contaminant peak at different time intervals: (j) reversed phase-high performance liquid chromatography profile of methanol in glass vial stored for 10 days