Determination of sulfonated azo dyes by liquid chromatography/atmospheric pressure ionization mass spectrometry

Journal Article · Sun Nov 15 04:00:00 EST 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00149a004· OSTI ID:6015538

Bruins, A P; Weidolf, L O.G.; Henion, J D; Budde, W L

Sulfonated azo dyes are separated by high-performance liquid chromatography and introduced into the atmospheric pressure ion source of a triple quadrupole mass spectrometer using pneumatic nebulizers. A heated nebulizer together with a corona discharge produces ions by gas phase chemical ionization. Two related nebulizers operating at room temperature and floating at a high voltage make use of ions present in the liquid phase. Collision induced dissociation of (M - H)/sup -/ ions shows SO/sub 3//sup -/ as a fragment characteristic of sulfonated azo dyes and parent ion scans on SO/sub 3//sup -/ are used for identification of azo dyes in environmental samples. Selected ion monitoring and selected reaction monitoring are used for the determination of specific dyes.

• Research Organization: Cornell Univ., Ithaca, NY
• OSTI ID: 6015538
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:22; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ATMOSPHERIC PRESSURE
AZO COMPOUNDS
AZO DYES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
DYES
ENVIRONMENTAL MATERIALS
EXPERIMENTAL DATA
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
MATERIALS
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECTROSCOPY
SULFONATES