Spot-test identification and rapid quantitative sequential analysis of dipyrone
Keyword(s):
A qualitative spot-test and tandem quantitative analysis of dipyrone in the bulk drug and in pharmaceutical preparations is proposed. The formation of a reddish-violet color indicates a positive result. In sequence a quantitative procedure can be performed in the same flask. The quantitative results obtained were statistically compared with those obtained with the method indicated by the Brazilian Pharmacopoeia, using the Student's t and the F tests. Considering the concentration in a 100 µL aliquot, the qualitative visual limit of detection is about 5×10-6 g; instrumental LOD ≅ 1.4×10-4 mol L-1 ; LOQ ≅ 4.5×10-4 mol L-1.
2011 ◽
Vol 17
(1)
◽
pp. 81-89
◽
2016 ◽
Vol 8
(9)
◽
pp. 128
2018 ◽
Vol 15
(1)
◽
pp. 32-38
◽
Keyword(s):
2017 ◽
Vol 2
(02)
◽
pp. 25-31
2015 ◽
Vol 12
(1)
◽
pp. 167-177
◽