Detectors

The use of the universal flame ionization detector (FID) or selective detectors such as nitrogen-phos

Figure 2 HTCGC analysis of the polymer additives using constant pressure mode. Peak identifications are given in Table 1.

Figure 3 HTCGC analysis of the polymer additives using constant flow mode. Peak identifications are given in Table 1.

Figure 3 HTCGC analysis of the polymer additives using constant flow mode. Peak identifications are given in Table 1.

phorus detection (NPD) or electron-capture detection (ECD) does not pose any problem in HTCGC. Moreover, the spectroscopic techniques mass spectrometry (MS), atomic emission detection (AED) and inductively coupled plasma mass spectroscopy (ICPMS) are compatible with HTCGC. As an illustration, Figure 4 shows the element-specific chromatograms for the phosphorus line at 178.1 nm (A) and the sulfur line at 181.4 nm (B) for the sample listed in Table 1 with the AED detector. The transfer line and cavity temperatures of the AED were set at 340°C. The other chromatographic conditions were very similar to those used for Figure 3.

Figure 4 Element-specificchromatogramsofthe polymeradditives recorded with atomic emission detection: (A) phosphorus line at 178.1 nm; (B) sulfur line at 181.4 nm.
Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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