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Industrial methyl methacrylate (Appendix B, Appendix C)

 Last Update: 2021-10-15
 Source: Internet
 Author: User

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Appendix B

Content determination chromatographic test reference conditions and chromatograms (Supplement)

B1 Reference test conditions:

Take the 102G gas chromatograph of Shanghai Analytical Instrument Factory as an example

B2 Retention time (t _R ) and relative retention value (ri _,s ) of each component :

Table B1

B3 The analysis conditions can be adjusted appropriately, and the retention time and the spectrum will change accordingly, but the whole process of the chromatogram should be controlled to be completed within 6 to 10 minutes with a suitable degree of resolution

Appendix C

Peak height-content standard curve preparation steps (Supplement)

Draw 8 mL of high-purity methyl methacrylate into a small sample bottle with a rubber stopper, and use a micro-injector to inject impurity components.

The standard curve needs to be calibrated regularly, once a month

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