Characterization and Uncertainty Assessment of a Certified Reference Material of Chloramphenicol in Methanol (GBW(E)082557)

Table 2

Mass fraction of chloramphenicol measured by MB methods.

Sample vials number	HPLC/%	Moisture/%	Purity/%
1	99.87	0.020	99.85
2	99.84	0.030	99.81
3	99.84	0.026	99.81
4	99.87	0.025	99.85
5	99.83	0.028	99.80
6	99.83	0.023	99.81
7	99.82	0.024	99.80
Mean	99.84	0.025	99.82
SD	0.020	0.003	0.02