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Table 4 Robustness for DEC and DEH assay

From: A new stability-indicating RP-HPLC method for the determination of dicyclomine hydrochloride and dimethicone combination in tablet dosage forms

Parameter

Condition applied

DEC

DEH

ReA

SV

RSV

ReA

SV

RSV

Methanol ratio (%)

45 (opt)

4258655

71394.7813

1.682

2184928

42212.8782

1.936

40 (varied)

4308985

2220846

50 (varied)

4168097

2136719

Flow stream (mL/min)

1.0 (opt)

4258655

77743.4253

1.833

2184928

30052.5910

1.381

0.9 (varied)

4156414

2142693

1.1 (varied)

4308985

2200846

pH value

4.5 (opt)

4311359

48299.1214

1.121

2204010

15598.0466

0.708

4.3 (varied)

4355115

2215842

4.7 (varied)

4258655

2184928

Detection (nm)

265 (opt)

4258655

76387.8855

1.794

2184928

39019.0224

1.788

263 (varied)

4333890

2142622

267 (varied)

4181120

2220565

Temperature (°C)

25 (opt)

4311359

48299.1214

1.121

2204010

15598.0466

0.708

23 (varied)

4355115

2215842

27 (varied)

4258655

2184928

  1. Opt optimised condition, ReA response area, SV standard variation, RSV relative standard variation