Results 121 to 130 of about 777 (162)
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Journal of Pharmaceutical and Biomedical Analysis, 1996
A simple and rapid spectrophotometric assay is described for bronopol determination in raw material. The method is based on the measurement of absorbance (at 244 nm) of bromonitroethanol (sodium salt of aci-form), the chromophoric derivative formed from bronopol instantaneously by a retroaldol reaction in the presence of 0.1 M NaOH. This derivative has
A K, Sanyal, M, Basu, A B, Banerjee
exaly +3 more sources
A simple and rapid spectrophotometric assay is described for bronopol determination in raw material. The method is based on the measurement of absorbance (at 244 nm) of bromonitroethanol (sodium salt of aci-form), the chromophoric derivative formed from bronopol instantaneously by a retroaldol reaction in the presence of 0.1 M NaOH. This derivative has
A K, Sanyal, M, Basu, A B, Banerjee
exaly +3 more sources
The Pain Aggression Induced by Bronopol in the Rat
Acta Pharmacologica Et Toxicologica, 1975Abstract:Bronopol in doses of 7–25 mg/kg given intraperitoneally almost immediately releases a transitory aggressive behaviour in rats. The painful state caused by bronopol‐induced chemical peritonitis probably brought about this behavioural phenomenon. The age of the animal and also the reserpine treatment play some role in this behavioural pattern.
L, Nieminen, M, Möttönen
exaly +3 more sources
Bronopol contact dermatitis in a milk recorder
British Journal of Dermatology, 1985Contact dermatitis to bronopol has been identified in a milk recorder with hand eczema. Milk recorders are contracted by the Milk Marketing Board to sample up to eight dairy herds for quality control checks. Samples are drawn at milking using a dipper with a hole 4 cm from the bottom, which allows a stream of milk to be collected into a small ...
C.E.H. Grattan, R.R.M. Harman
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Reactions to Quaternium 15, Bronopol and Germall 115 in a standard series
Contact Dermatitis, 1986The incidence of positive patch test reactions to Quaternium 15 has increased by a factor of 3 within a relatively stable population over 2 years, while the incidence of reactions to Bronopol and Germall 115 has remained static. The problem of interpreting an apparent positive reaction to a formaldehyde‐releasing preservative in a formaldehyde ...
M H Beck
exaly +3 more sources
The impact of the various chemical and physical factors on the degradation rate of bronopol
International Journal of Cosmetic Science, 2012SynopsisBronopol (2‐bromo‐2‐nitropropane‐1,3‐diol) is used as preservative in cosmetic industry. Its main role in commercial products consists in protection of the cosmetic composition stability by inhibiting the development of micro‐organisms. Unfortunately, preservatives can also undergo the degradation processes. The aim of examinations was to prove
Magdalena Matczuk
exaly +3 more sources
A Method for Studying the Activity of Preservatives and its Application to Bronopol
Journal of Applied Bacteriology, 1978A device for dispensing up to 100 1 simultaneously from as many as 24 tubes arranged in a randomized block is described. As the device can also be used for dispensing single drops onto the surface of pre‐dried agar in Petri dishes, it can be used for viable counts.
K E, Moore, R J, Stretton
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Suitability of bronopol preservative treated milk for fatty acid determination
Journal of Dairy Research, 2011This work aimed to test if milk preserved with bronopol can be reliably used for fatty acid determination. Dairy production and milk quality are often monitored regularly to assess performance and contribute to selection indices. With evidence that fat composition can be influenced by selective breeding, there might be an interest in using samples ...
Butler G, Stergiadis S
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The percutaneous absorption and disposition of the antibacterial agent bronopol in rats and rabbits
Food and Cosmetics Toxicology, 1976Abstract The antibacterial agent bronopol, 2-bromo-2-nitropropane-1,3-diol (labelled with carbon-14) was only slowly absorbed through the skin of rats and rabbits (11% in 24 hr), although greater absorption was found when solutions in acetone rather than in water were applied.
P C, Risdall +3 more
openaire +2 more sources
Toxicology Letters, 1980
Approx. 40% of the topically applied dose of antibacterial agent [14C] bronopol([14C]BP) was absorbed through the rat skin within 24 h. Of the applied radioactivity, about 19% was excreted in the urine, feces and expired air. The 24 h recoveries of 14C in the urine and expired air were 15 and 2%, respectively, of the dose applied to the skin, and 74 ...
H S, Buttar, R H, Downie
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Approx. 40% of the topically applied dose of antibacterial agent [14C] bronopol([14C]BP) was absorbed through the rat skin within 24 h. Of the applied radioactivity, about 19% was excreted in the urine, feces and expired air. The 24 h recoveries of 14C in the urine and expired air were 15 and 2%, respectively, of the dose applied to the skin, and 74 ...
H S, Buttar, R H, Downie
openaire +2 more sources