Reference

Determination of aniline vapors in air

Stentsel, I. I.; Sagaidachnyi, A. P.; Mirgorodskii, N. I.; Bikulov, A. F.; Kavizin, V. M.; Bakhmet, P. M. (Voroshilovgrad Machine-Building Institute, Rubezhnoe; "Stekloplastik" Severodonetsk Industrial Enterprises, USSR). U.S.S.R. SU 857808 23 Aug 1981 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1981, (31), 212. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: G01N021-78. APPLICATION: SU 79-2804966 790628. DOCUMENT TYPE: Patent CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 80 Aniline [62-53-3] vapors in air are detd. by blowing an air sample through a strip treated with a 5-10% soln. of p-dimethylaminobenzaldehyde [100-10-7] in AcOH [64-19-7]. The sensitivity of the detn. is increased by addnl. treatment of the strip with 0.2-0.25% soln. of Bromophenol Blue [115-39-9] and then immediately before anal. with 60-70% AcOH soln.

Contribution to the microdetermination of cationic surfactants

Contribution to the microdetermination of cationic surfactants. Arpino, A.; Ruffo, C. (Stn. Sperim. Oli Grassi-Milan, Italy). Riv. Ital. Sostanze Grasse, 53(12), 395-8 (Italian) 1976. CODEN: RISGAD. DOCUMENT TYPE: Journal CA Section: 46 (Surface Active Agents and Detergents) Section cross-reference(s): 60, 61 The 3Disulfine Blue VN 150 (I) [116-95-0] method was more sensitive than thhe bromophenol blue [115-39-9] method for the microdetn. of cationic surfactants in the anal. of waste and surface waters and water from biodegrdn. tests. The precision of the I method was 0.63-11.25% for surfactant concns. 0.005-0.04 mg/L.