Journals
Publish with us
Publishing partnerships
About us
Blog
International Journal of Analytical Chemistry
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
International Journal of Analytical Chemistry
/
2017
/
Article
/
Tab 1
/
Research Article
Quantitative Analysis of Volatile Impurities in Diallyldimethylammonium Chloride Monomer Solution by Gas Chromatography Coupled with Liquid-Liquid Extraction
Table 1
Comparison of external and internal standard methods.
Methods
Conc. (mg L
−1
)
Found
RSD (%)
External standard method (peak area,
)
10
938 854 1305 1042 1202
17.35
30
2741 2983 3364 3687 3051
11.58
50
3801 6132 5349 5895 5859
17.42
Internal standard method (peak area ratio,
)
10
0.419 0.413 0.412 0.427 0.420
1.45
30
1.25 1.24 1.30 1.29 1.24
2.27
50
2.21 2.14 2.15 2.19 2.16
1.41