Reference

Determination of nitrogen-containing cyclic compounds by high performance liquid chromatography and its application to analysis of motor bike exhaust gases

Determination of nitrogen-containing cyclic compounds by high performance liquid chromatography and its application to analysis of motor bike exhaust gases. Takano, Jiro; Kitahara, Takio; Yasuoka, Takashi; Mitsuzawa, Shunmei; Shirai, Kozo (Fac. Sci., Tokai Univ., Hiratsuka, Japan). Taiki Osen Gakkaishi, 18(6), 561-8 (Japanese) 1983. CODEN: TOSGDC. DOCUMENT TYPE: Journal CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 80 An exhaust gas sample (1 m3) from a motor bike was adsorbed in a trap packed with glass beads (diam. 0.295 ~ 0.490 mm) by using liq. O. The Ni-contg. cyclic compds. (NCCCs) in the trap was extd. with MeOH. The ext. was concd. to 2 mL of final vol. under reduced pressure at 20°. The NCCCs in the ext. were directly detd. by a high-performance liq. chromatog. (HPLC) equiped with an UV detector under the following conditions: column, Zorbax-SIL (6.2 ′ 250 mm); mobile phase, MeOH-H2O; flowrate, 1.2 mL/min; column temp., 53°; wavelength of UV detector, 254 and 230 nm. This HPLC procedure seps. 16 NCCCs, at limits of 2-20 ng at S/N = 2. Indole [120-72-9] and 9-acridone [578-95-0] occurred in the exhaust gas sample from a motor bike, and their concns. were 17 and 2.9 mg/m3, resp. The qual. anal. procedure of NCCCs by thin-layer chromatog. (TLC) are also described.

Effect of some carbamazepin metabolites on Nielsen's quantitative determination

Effect of some carbamazepin metabolites on Nielsen's quantitative determination. Part 5: Chemistry and analysis of dibenzazepine derivatives. Beyer, K. H.; Wagemann, A. (Inst. Pharm., Freie Univ. Berlin, Berlin, Ger.). Arzneim.-Forsch., 28(2), 246-8 (German) 1978. CODEN: ARZNAD. ISSN: 0004-4172. DOCUMENT TYPE: Journal CA Section: 1 (Pharmacodynamics) The photometric method for the quant. detn. of carbamazepine (I) [298-46-4] from 1,2-dichloroethane exts. of blood serum proposed by Nielsen (UgesKr. Laeg. 131, 2000 (1969) was not specific for I since 6 metabolites (iminostilbene [256-96-2], carbamazepine 10,11-epoxide [36507-30-9], 10,11-dihydro-10,11-dihydroxycarbamazepine [35079-97-1], 9-methylacridine [611-64-3], acridine 9-carbaldehyde [885-23-4], and acridone [578-95-0]) also reacted under the same conditions.