Topic: Use Schiffs Reagent To detect Formalin In Milk (Read 2647 times)

Shabayer · « **on:** September 26, 2018, 02:41:06 PM »

Hello guys i am having a problem regarding schiffs reagent.....as we know schiffs reagent is used to test for aldehydes or you can say formalin.
The Problem is that schifs reagent when acidified with Dilute HCL gives pink color with natural as well as formalin containing milk and also with the protein albumin...i want it to react with just formalin in the milk...please help me with this problem...Thanks
P.S: Schiffs reagent should not give colour in natural milk as it does not contain Aldehydes....moreover if there is some alternative reagent for the same detection you can tell me that also....

sjb · « **Reply #1 on:** September 27, 2018, 04:15:19 AM »

Quote from: Shabayer on September 26, 2018, 02:41:06 PM

P.S: Schiffs reagent should not give colour in natural milk as it does not contain Aldehydes

Are you sure - how about open chain forms of saccharides etc?

Shabayer · « **Reply #2 on:** September 27, 2018, 10:05:48 AM »

thnx....guide me about this problem?

wildfyr · « **Reply #3 on:** September 27, 2018, 10:41:12 AM »

Some sugars exist in equilibrium with their ring closed state and an ring opened aldehyde form. From 0.1-1% ring opened at a given moment is typical.

Topic: Use Schiffs Reagent To detect Formalin In Milk (Read 2647 times)

Shabayer

Use Schiffs Reagent To detect Formalin In Milk

sjb

Re: Use Schiffs Reagent To detect Formalin In Milk

Shabayer

Re: Use Schiffs Reagent To detect Formalin In Milk

wildfyr

Re: Use Schiffs Reagent To detect Formalin In Milk

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