Optimization and Validation of RP-HPLC-UV/Vis Method for Determination Phenolic Compounds in Several Personal Care Products

Table 4

Results of recovery study for BHA, BHT, and OMC by RP-HPLC-UV/Vis at 𝜆_max = 280 nm.

Relative recovery (%, 𝑛=12)
Spiked (mg/L)	BHA	RSD%	BHT	RSD%	OMC	RSD%
1	105.9	2.64	108.9	7.69	103.7	2.53
5	102.3	3.72	102.8	4.02	94.6	1.95
10	99.7	1.65	95.9	3.13	93.3	1.45
25	92.1	1.18	83.2	2.24	87.3	1.27