By henrik pedersen on Wednesday, October 27, 1999 - 02:16 am:
Is it posible to avoid formaldehyd for stabilisation of sulphite.
I am a danish student, who have been asked to work with that problem. I cant not find litterature about it- soo if you have some experience with this problem - I will bee verypleased
By Anonymous on Wednesday, October 27, 1999 - 08:57 am:
Dear Henrik Pedersen,
I used Hamilton PRP-X100 column (250 X 4.1 mm)did sulfite and sulfate separation. If you can make sure that sulfite in your sample won't be oxidized to sulfate, you can do it. I used 8:2 8mM p-Hydroxybenzoic acid (pH 10.0) : MeOH. Isocratic. Ambient. Flow rate 2 ml/min. Conductivity detector. Sulfite retention is 4 min and sulfate is about 5 min. I do not know what detection limit you want to go.
By henrik pedersen on Friday, October 29, 1999 - 05:03 am:
Dear anonymous -
thank you for the applikation - but how kan I make sure that sulphite is stable. I am looking for an substitute instead of formaldehyde - perhaps another aldehyde eg formaldehyd.
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