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. Author manuscript; available in PMC: 2021 Nov 10.
Published in final edited form as: J Chem Educ. 2020 Oct 26;97(11):3976–3983. doi: 10.1021/acs.jchemed.0c00904

Table 1.

HPLC Results Demonstrating Quality Issues with Losartan Samples.

Sample API Present, % Result
Pill Heterogeneity Issuea
Pill One 70.2 Fail
Pill One Retest 70.0 Fail
Pill Two 75.1 Fail
Pill Three 90.5 Pass
Substandard Quality Issueb
Pill One 82.6 Fail
Pill One Retest 86.2 Fail
Pill Two 83.1 Fail
Pill Three 81.7 Fail
a

Two tablets failing analysis.

b

All three tablets failing analysis.