Chromotropic acid-formaldehyde reaction in strongly acidic media. The role of dissolved oxygen and replacement of concentrated sulphuric acid

Talanta

Volumn 60, Issue 1, 2003, Pages 171-176

  Fagnani, E ^a   Melios, C B ^a   Pezza, L ^a   Pezza, H R ^a  

^a SÃO PAULO STATE UNIVERSITY UNESP   (Brazil)

Author keywords

Chromotropic acid; Dissolved oxygen; Formaldehyde; Spectrophotometry

Indexed keywords

CHEMICAL MODIFICATION; HYDROCHLORIC ACID; OXIDATION; OXYGEN;

ACIDIC MEDIA;

SULFURIC ACID;

ACID; CHLORIDE; CHROMOTROPIC ACID; DISSOLVED OXYGEN; FORMALDEHYDE; HYDROCHLORIC ACID; HYDROGEN PEROXIDE; OXIDIZING AGENT; PHOSPHORIC ACID; SULFURIC ACID; UNCLASSIFIED DRUG;

ACCURACY; ACIDITY; ANALYTIC METHOD; ARTICLE; CHEMICAL ANALYSIS; CHEMICAL MODIFICATION; CHEMICAL REACTION; CHEMICAL STRUCTURE; CONCENTRATION RESPONSE; HEATING; OXIDATION; REACTION ANALYSIS; SPECTROPHOTOMETRY; TECHNIQUE;

EID: 0038245061     PISSN: 00399140     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0039-9140(03)00121-8     Document Type: Article

References (14)

1. E. Sawicki, T.R. Hauser, S. McPherson, Anal. Chem. 34 (1962) 1460.
2. A.A. Cardoso, E.A. Pereira, Anais Assoc. Bras. Quim. 48 (1999) 63.
3. K.A. Sakiara, L. Pezza, C.B. Melios, H.R. Pezza, M. de Moraes, Il Farmaco 54 (1999) 629 (References therein).
4. NIOSH Manual of Analytical Methods, second ed., vol. 1, US Department Health, Education, and Welfare, Publ. (NIOSH) 77-157-A, 1977.
5. NIOSH Manual of Analytical Methods, fourth ed., US Department Health, Education, and Welfare, method 3500(2), 1994.
6. C.E. Bricker, W.A. Vail, Anal. Chem. 22 (1950) 720.
7. P.E. Georghiou, C.K. Ho, Can. J. Chem. 67 (1989) 871.
8. A.D. Pickard, E.R. Clark, Talanta 31 (1984) 763.
9. F. Feigl, Spot Tests in Organic Analysis, seventh ed., Elsevier, Amsterdam, 1966, pp. 434, 435.
10. E. Jungreis, Spot Test Analysis, second ed., Wiley, New York, 1997, pp. 125, 126.
11. M. Hudlický, Oxidations in Organic Chemistry, ACS Monograph 186, Am. Chem. Soc., Washington, DC, 1990, p. 20.
12. Association of Official Analytical Chemists, Official methods of Analysis of AOAC international, vol. 2, 16th ed, AOAC International, Arlington, 1995, p. 5.
13. Association of Official Analytical Chemists, Official methods of Analysis of AOAC international, vol. 2, 16th ed, AOAC International, Arlington, 1995, p. 99.
14. O.A. Ohlweiler, Química Analitica Quantitativa, vol. 2, third ed, LTC-Livros Técnicos e Científicos Editora SA, Rio de Janeiro, 1982, p. 190.