Method of detecting isocyanates

Chemistry: analytical and immunological testing – Nitrogen containing – Cyanide or isocyanide

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

436161, 436172, 436902, G01N 2164, G01N 3122

Patent

active

053546890

ABSTRACT:
The present invention provides for a method for detecting the presence of isocyanate in a sample by (a) contacting an isocyanate derivatizing reagent having the formula I

REFERENCES:
patent: 2636032 (1953-04-01), Weston et al.
patent: 3800044 (1974-03-01), Craig et al.
patent: 3896133 (1975-07-01), Craig et al.
patent: 4128513 (1978-12-01), Errede et al.
patent: 4792551 (1988-12-01), Nelson et al.
patent: 4857644 (1989-08-01), Abou-Gharbia
patent: 4954416 (1990-09-01), Wright et al.
patent: 5101059 (1992-03-01), Carpino et al.
C. Purnell et al., Methods for the Determination of Atmospheric Organic Isocyanates A Review, Analyst, Aug. 10, 1985, vol. 110, pp. 893-905.
N. Kornblum et al., A New Method for Protecting Amines, J. Org. Chem, vol. 42, No. 2, 1977, pp. 399-400.
V. Dharmarajan et al., Recent Developments in the Sampling and Analysis of Isocyanates in Air, Sampling and Calibration for Atmospheric Measurements, ASTM STP 957 (American Society for Testing and Materials, Philadelphia, 1987) pp. 190-202.
S. Robertson, Determination of Total Isocyanate Concentration in Air by Headspace Gas Chromatography, Health and Safety Executive, Research and Laboratory Services Division, Section Paper (Jan., 1986).
J. Liu et al., Photokinetics of the Fluorescence Quenching of 9-Methylanthracene by Piperazines, Chemical Physics Letters, vol. 146, No. 5, May, 1988, pp. 382-386.
W. Wu et al., Application of Tryptamine as a Derivatising Agent for Airborne Isocyanate Determination, Part 3. Evaluation of Total Isocyanates Analysis by High-performance Liquid Chromatography With Fluorescense and Amperometric Detection, Analyst, vol. 115, Jun., 1990, pp. 801-807.
MDHS 25--Methods For The Determination of Hazardous Substances: Organic Isocyanates in Air, Health and Safety Executive: Occupational Medicine And Hygiene Laboratory, Mar. 1987.
K. Marcoli, Microdetermination of Toluenediisocyanates in Atmosphere, Analytical Chemistry, vol. 9, No. 4, 1957, pp. 522-558.
Hardy, H. L. et al., Novel Reagent for the Determination of Atmospheric Isocyanates Monomer Concentrations, Analyst, vol. 104, 1979, pp. 890-891.
Sango, C. et al., A New Reagent for Determination of Isocyanates in Working Atmospheres by HPLC using UV or Fluorescence Detection, J. Liq. Chromatogr, vol. 3(7), 1980, pp. 971-990.
Goldberg, P. S. et al., Determination of Trace Atmospheric Isocyanate Concentrations by Reversed-Phase High-Performance Liquid Chromatography using 1-(2-pyridyl)piperazine, J. Chromatogr., vol. 212, 1981, pp. 93-104.
Warwick, C. J. et al., Application of Electrochemical Detection to the Measurement of Free Monomeric Aromatic and Aliphatic Isocyanates in Air by High-Performance Liquid Chromatography, Analyst, vol. 106, 1981, pp. 676-685.
Bagon, D. A., et al., Evaluation of Total Isocyanate-in-Air Method Using 1-(2-Methoxyphenyl)piperazine and HPLC, Am. Ind. Hyg. Assoc. J., vol. 45(1), 1984, pp. 39-43.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of detecting isocyanates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting isocyanates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting isocyanates will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1658105

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.