Čes. slov. farm. 2018, 67(1):30-31 | DOI: 10.36290/csf.2018.004
Theory and practice of pharmacopoeial control of the quality of drugs and excipients VII. The colour reference solutions of the European pharmacopoeia (Ph. Eur.)
- 1 Veterinární a farmaceutická univerzita Brno, Farmaceutická fakulta, Ústav aplikované farmacie, Brno
- 2 Univerzita veterinárskeho lekárstva a farmácie v Košiciach, Katedra lekárenstva a sociálnej farmácie
- 3 Univerzita Komenského v Bratislave, Farmaceutická fakulta, Katedra farmaceutickej chémie
Data calculations of three different workplaces consistently show that the difference in colour ΔE (CIELAB) of some colour reference solutions according to Ph. Eur. with small colour and purified water are too small. As a result, there is failure with use of these solutions for visual assessment of the coloration of the liquids. Solving the problem in Ph. Eur. presupposes the introduction of instrumental colour evaluation into this pharmacopoeia.
Keywords: Ph. Eur.; colour reference solutions; colour difference; CIELAB; visual assessment; instrumental measurement
Received: December 19, 2017; Accepted: January 3, 2018; Published: January 1, 2018 Show citation
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Šubert J, Kolář J, Čižmárik J. Theory and practice of pharmacopoeial control of the quality of drugs and excipients VII. The colour reference solutions of the European pharmacopoeia (Ph. Eur.). Čes. slov. farm. 2018;67(1):30-31. doi: 10.36290/csf.2018.004.
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