Sunday
April 20, 2014

Homework Help: column chromatography

Posted by sue on Sunday, February 18, 2007 at 12:27pm.

A student loaded a mixture, dissolved in 1cm3 of dichloromethane, CH2Cl2, onto a small flash chromatography column and then proceeded to elute with hexanes/ethyl acetate 10:1. He/she found that all of the mixture came off in the first 4 fractions, with no separation. What technical mistake did the student make?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

TLC - The following two solvents systems were found to separate compounds x and ...
chemistry - in column chromatography in general do polar or nopolar elute first
chemistry - 1. In standard column chromatography, it is better to change from a ...
Chemistry - Sorry. What I meant was: How do we improve the efficiency of Flash ...
chemistry - You have purifiedLDH using affinity chromatography. Using the ...
biochemistry - You have purifiedLDH using affinity chromatography. Using the ...
Chemistry - Hi, I have a question on column length for HPLC (high performance ...
Biochem - When trying to purify a protein using column chromatography, what ...
Chemistry-thanks - I have a method using HPLC (high performance liquid ...
Organic Chemistry - What is/are the product(s) of the potassium permanganate ...

Search
Members