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Table 2 Sample analysis definitions

From: Prevalence estimates of substandard drugs in Mongolia using a random sample survey

Test

Definition

Appearance

Clean, smooth surface and uniform color of tablet or capsule

Friction and substantial

Tablet crushing strength

Weight average

Average weight of 20 tablets

Weight variation

Difference between the weight of the content of each solid form and the average weight of solid forms

Disintegration

Disintegration or disbursement of solid preparations into fragments or particles in a liquid medium

Dissolution

Rate and degree of dissolution of active ingredients in liquid medium

Content uniformity

Contents of single ingredient solid preparations

Water (Loss on drying)

Determine water loss on drying

Identification

Verify identity by visual inspection

Irradiance absorption

Absorbance in the ultraviolet region

Assay

Determine content of active ingredients