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Wang, "Selective detection of TNT and picric acid by conjugated polymer film sensors with donor-acceptor architecture," Macromolecules , vol.
Picric acid sirius red staining was used for quantitative analysis of the collagen content in the bone tendon insertion.
He exploited his job to get his hands on many restricted material, including ' Picric acid', used for triggering an explosive device.
Major Lionel Brook Holliday son of the firm's founder and a director was one of few people who understood how to manufacture picric acid. When the munitions crisis hit the British army in the spring of 1915 he was seconded from France where he was a major in the West Riding Regiment to run a picric acid plant at Bradley and in June 1915 the creation of the Huddersfield National Shell Factory was announced.
The operated bones were fixed in the mixture of 2% paraformaldehyde and glutaraldehyde solution, and 0.1% picric acid solution on 0.1 Mphosphate buffer at pH 7.4, after that they were embedded in araldit.
The microTLC uses aluminum-backed reverse-phase C18 TLC plates--chromatoplate (RP-18)--to identify common military explosives (i.e., TNT, tetryl, picric acid, Explosive D, RX and HMX) all on one plate.
Estimation of Plasma Creatinine by ModifiedJaffe's Method (Spietro et al 1979)12To 1.5 ml of protein free filtrate add 0.25 ml of NaOH and 0.75 ml of picric acid and allow standing for 15 minutes at room temperature.
The "compensation" in these Jaffe methods essentially subtracts 0.2 mg/dL from the creatinine determination to account for the noncreatinine-reducing substances that react with picric acid (mainly serum proteins).
The small but "unstable" amount of picric acid was discovered in a laboratory at the Euticals plant in Sandycroft, Deeside, on Tuesday.
The 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (picric acid) are the prominent members of this group.
Creatinine with picric acid in alkaline environment (NaOH) creates the chromogen.
Creatinine reacts with picric acid in alkaline conditions to form a yellow complex which absorbs at 500 nm (Fabiny and Ertingshausen 1971).