Table 8 Day-to-day precision results.

From: Rapidly, sensitive quantitative assessment of thiopental via forced stability indicating validated RP-HPLC method and its in-use stability activities

Standard replicate

Day—1

Day—2

Day—3

Weight (mg)

54.2

54.5

54.4

1

5931.4

5991.5

5968.1

2

5944.4

5986.2

5950.8

3

5943.1

5994.6

5958

4

5925.0

5989.5

5954.7

5

5940.2

5988.9

5956.4

6

5915.2

5987.7

5960.9

Mean P.A

5933.2

5989.7

5958.2

Tests

 Weight (mg)

54.3

54.6

54.1

  1

5931.1

6007.6

5928.2

  2

5991.3

5992.6

5927.3

 Mean P.A

5961.2

6000.1

5927.75

 Assay (%)

86.0

85.7

85.8

Pooled assay (%)

85.8

Pooled STDEV

0.14

Pooled RSD (%)

0.16