First of all, you only determine the yield of the GC-MS unreliable, the GC does not have a raw material to determine the conversion rate of 100% (precursor is raw material in GC peak), but the problem is not to translate into your product, maybe mostDecompose impurities that are gc do not peak.More reliable, the method is, GC joins the internal standard, which can calculate your product yield.
Alamine boiling point 180, the vacuum is difficult to exhaust, 30mg for you, a lot?If you are gratitude, there is no big impact, additional aniline, it is easier to oxidize, and then pay attention to.
First of all, you only determine the yield of the GC-MS unreliable, the GC does not have a raw material to determine the conversion rate of 100% (precursor is raw material in GC peak), but the problem is not to translate into your product, maybe mostDecompose impurities that are gc do not peak.More reliable, the method is, GC joins the internal standard, which can calculate your product yield.
Alamine boiling point 180, the vacuum is difficult to exhaust, 30mg for you, a lot?If you are gratitude, there is no big impact, additional aniline, it is easier to oxidize, and then pay attention to.
Great God, begging for the problem when you get extraction!I used etiol when I extracted, but I feel a lot of products in the aqueous phase after each extraction. My teacher let me try the time for each placement. It will be an hour. I will still appear after an hour.This situation
Great God, begging for the problem when you get extraction!I used etiol when I extracted, but I feel a lot of products in the aqueous phase after each extraction. My teacher let me try the time for each placement. It will be an hour. I will still appear after an hour.This situation
I tell you a method, vacuuming to recover aniline. Slightly soluble in water, soluble in organic solvent colorless liquid such as ethanol, diethyl ether.Melting point -6.3 ° C, boiling point 184 ° C, relative density 1.02 (20/4 ° C), relative molecular weight 93.128, heated to 370 ° C decomposition. When vacuum, change the solvent to absorb aniline, last distillation separation of aniline and solvent
I tell you a method, vacuuming to recover aniline. Slightly soluble in water, soluble in organic solvent colorless liquid such as ethanol, diethyl ether.Melting point -6.3 ° C, boiling point 184 ° C, relative density 1.02 (20/4 ° C), relative molecular weight 93.128, heated to 370 ° C decomposition. When vacuum, change the solvent to absorb aniline, last distillation separation of aniline and solvent
Alamine boiling point 180, the vacuum is difficult to exhaust, 30mg for you, a lot?If you are gratitude, there is no big impact,
additional aniline, it is easier to oxidize, and then pay attention to.
Alamine boiling point 180, the vacuum is difficult to exhaust, 30mg for you, a lot?If you are gratitude, there is no big impact,
additional aniline, it is easier to oxidize, and then pay attention to.
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Slightly soluble in water, soluble in organic solvent colorless liquid such as ethanol, diethyl ether.Melting point -6.3 ° C, boiling point 184 ° C, relative density 1.02 (20/4 ° C), relative molecular weight 93.128, heated to 370 ° C decomposition.
When vacuum, change the solvent to absorb aniline, last distillation separation of aniline and solvent
Slightly soluble in water, soluble in organic solvent colorless liquid such as ethanol, diethyl ether.Melting point -6.3 ° C, boiling point 184 ° C, relative density 1.02 (20/4 ° C), relative molecular weight 93.128, heated to 370 ° C decomposition.
When vacuum, change the solvent to absorb aniline, last distillation separation of aniline and solvent
More
VOTE