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

Table 6

Results of long-term stability study.

Time/month	Value/(mg/L)
	0	1	3	6
#1	100.4	100.4	101.4	100.2
	101.2	99.7	100.9	99.8
	101.1	99.6	101.0	100.5
#2	100.2	99.1	100.5	100.3
	101.6	101.4	100.3	99.9
	100.8	100.8	100.6	99.8
Mean	100.9	100.2	100.8	100.1
	−0.0845
	100.7
	0.1801
	0.0926
	4.3
Conclusion	, stable