Rapid Discrimination of Chlorpheniramine Maleate and Assessment of Its Surface Content Uniformity in a Pharmaceutical Formulation by NIR-CI Coupled with Statistical Measurement

Table 1

The consequence of statistical measurement by NIR-CI.

Number	Range of diameters (𝜇m)	Average diameter (𝜇m)	Proportion of white region
1	37.78–60.41	47.20	3.38%
2	64.07–108.11	80.98	4.11%
3	49.73–78.77	61.93	3.23%
4	35.22–68.29	53.80	4.20%
5	39.79–64.94	50.29	4.17%

∗Number 1–5 represented upper-left region, upper-right region, lower-left region, lower-right region, and middle region on the tablet surface, respectively.