Chemiluminescence instruments

K. Van Dyke, ed.. Bioluminescence and Chemiluminescence Instruments and Applications, CRC Press, Boca Raton, Fla., 1985. 

Nitric oxide (NO) and nitrogen dioxide (NO2) were monitored by a Bendix chemiluminescence instrument. However, since the "NO2" readings of this type of instrument are known to include the contribution of HNO3, HONO, PAN, and other organic nitrates ( ), we report these readings as "gaseous nitrate."... 

Figure 25 Comparison of the molar mass distribution from original sample of pullulan (1) and that heated by the rate 2.5°C/min from 40°C to 220°C (2) in oxygen directly in chemiluminescence instrument. The line 3 is the same experiment with sample impregnated with MMMC.

The calibration of a chemiluminescent analyzer using these standards is verified when both the nitrogen dioxide and nitric oxide channels respond similarly to charges from the (ylinder of diluted nitric oxide. Agreement with the response of the nitric oxide channel should also be obtained when the standard nitric oxide mixture is titrated with a previously established source of ozone. Chemiluminescent instruments have simplified monitoring of nitrogen oxides, but accurate calibration requires well-trained personnel. 

E. P. Achterberg, P. N. Sedwick, S. Ussher, and P. J. Worsfold, Real-Time Monitoring of Picomolar Concentrations of Iron(lI) in Marine Waters Using Automated Flow Injection-Chemiluminescence Instrumentation, Environ. Sci. TechnoL 2002,36, 4600. 

Figure 7. Schematic of O3 chemiluminescence instrument for the measurement of NO and N02. (Reproduced with permission from reference 18. Copyright 1990 American Geophysical Union.)...

Van Dyke K (1985) Biolumisencence and Chemiluminescence Instruments and Applications vol I/II. CRC Press, Baton Roca... 

The chemiluminescence Instrument, shown schematically In Figure 1, measures the light emitted from polymers during exposure to selected combinations of stress, temperature and atmosphere. 

The object of this paper is to present a new chemiluminescence instrument and method having the above mentioned features. 

M21. McCapra, F., and Beheshti, I., Selected chemical reactions that produce light. In Bioluminescence and Chemiluminescence Instruments and Applications (K. Van Dyke, ed.), Vol. 1, pp. 9-42. CRC Press, Boca Raton, FL, 1985. 

Fig. 5.18. Configuration of an imaging chemiluminescence instrument. After Ahlblad ef a/. [598]. Reprinted itom Polymer Testing 16, G. Ahlblad et al., 59-73, Copyright (1997), with permission of Elsevier.

As part of the Megacity Initiative Local and Global Research Observations (MILAGRO) project, a comprehensive airborne study by Yokelson et al. reported the first detailed field measurements of biomass emissions in the Northern Hemisphere tropics [169]. Volatile emissions were measured from 20 deforestation and crop residue fires on the Yucatan peninsula. This included two trace gases which are often considered to be useful as indicators of biomass burning. One we have discussed before, namely acetonitrile, and the other is hydrogen cyanide. A variety of instrumentation was co-deployed for this investigation (FTIR spectroscopy, GD-FID, a GC-Trace Analytical Reduction Gas Detector, fluorescence and chemiluminescence instruments and various other spectrometers). PTR-MS was used to monitor methanol, acetonitrile, acetaldehyde, acetone, methyl ethyl ketone, methyl propanal, hydroxyacetone plus methyl acetate, benzene and 13 other volatile species. 

---