Reference

Rapid separation of soft drinks ingredients using high performance liquid chromatography

Rapid separation of soft drinks ingredients using high performance liquid chromatography. Williams, M. L. (Cent. Qual. Control, Britvic Soft Drinks Ltd., Chelmsford/Essex CM1 1TU, UK). Food Chem., 22(3), 235-44 (English) 1986. CODEN: FOCHDJ. ISSN: 0308-8146. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) A method is described which uses high performance liq. chromatog. in the reverse phase mode to sep. amaranth [915-67-3], quinoline yellow [8004-92-0], quinine sulfate [804-63-7], sunset yellow [2783-94-0], caffeine [58-08-2], aspartame [22839-47-0], saccharin [81-07-2], vanillin [121-33-5], sorbic acid [110-44-1], benzoic acid [65-85-0] and green S [3087-16-9] in 4 min in samples of soft drinks. The final sepn. was achieved using 17.5% acetonitrile, 12.5% methanol, 70% buffer (0.85% H2SO4 and 17.5% mM potassium dihydrogen orthophosphate in water with the pH adjusted to 1.8), with a flow rate of 1.35 mL/min through a 100 mm ′ 4.6 mm column contg. 3 mm Spherisorb octylsilane. The octylsilane material is fully capped with monolayer coverage and a carbon loading of 6%, pore diam. of 8 nm and a surface area of 220 m2/g. This material was used in preference to the more widely used octadecylsilane as it provides shorter anal. time and allows for the use of more polar eluting solvents. Detection was at 220 nm, 0.1 AUFSD with an injection of 5 mL samples using a rotary injection valve. The std. soln. concn. was 100 mg/L for aspartame; 20 mg/L for quinine sulfate, caffeine, vanillin, sorbic acid and benzoic acid and 5 mg/L for amaranth, quinoline yellow, sunset yellow, green S, tartrazine, indigo carmine and carmoisine.

Dye-containing aerosol spray for self protection and identification of assailants

Dye-containing aerosol spray for self protection and identification of assailants. McCreary, A. James; McCreary, Cynthia D. (Can. ). U.S.Some commonly used reagents like 3087-16-9 and 117804-99-6 are used in this experiment. US 5084097 A 28 Jan 1992,3 pp. (United States of America). CODEN: USXXAM. CLASS: ICM: C09D011-00. NCL: 106019000. APPLICATION: US 90-467011 18 Jan 1990. DOCUMENT TYPE: Patent CA Section: 4 (Toxicology) A nontoxic dye in an aerosol container to be used for protection against an assailant is disclosed. The dye is an irritant to skin and eyes and is also a semipermanent marking dye which is intended to aid in the identification of the assailant by police. A preferred formulation comprises FD&C Green #15794 3.14%, Ariavit Green S #312524 1.62%, water 85.57%, Triton X-100 0.10%, CH2O 0.05%, and hydrocarbon propellant (A-70) 9.52%. .