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ÕæÇ¿±ØÊ¤: ½ð±Ò+1, good 2014-07-10 11:27:17
lv_guohua(RXMCDM´ú·¢): ½ð±Ò+2, ¶àлӦÖú£¡ 2014-08-05 10:16:12
Gas chromatographic external standard method was used to analyze the dimethylnaphthalene extracted from wash oil. External standard analysis method was set up and standard curves were obtained. The accuracy of the standard curves were proved through testing. Thus a rapid and precise analysis for small amounts of impurities contained in 1,4-dimethylnaphthalene was realized.
2Â¥2014-07-10 11:24:14
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lv_guohua(RXMCDM´ú·¢): ½ð±Ò+2, ¶àлӦÖú£¡ 2014-08-05 10:16:23
The isolated 1,4- two methylnaphthalene oil were analyzed by gas chromatography external standard method, the standard analysis method, the standard curve, accuracy of the standard curve was verified by the experiment, in order to realize the 1,4- two methyl naphthalene and its analysis of trace impurities containing the fast, accurate.

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3Â¥2014-07-10 21:25:17
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