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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: Shabayer on October 10, 2018, 10:36:54 AM

Title: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: Shabayer on October 10, 2018, 10:36:54 AM

Hi.....I want to ask that how can i fix a dye(Like phenolphthalein) onto whatman filter paper No.1.... P.S: Whenever dip the paper that has been dipped into the reagent first and then dried and dipped back into the sample, it washes out the reagent into the sample...i don't want to contaminate the sample...please help

Title: Re: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: wildfyr on October 10, 2018, 02:36:05 PM

You need a reactive dye or a reactive binder of some sort. What sort of chemistry means and skills do you have at your disposal?

Title: Re: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: Shabayer on October 14, 2018, 09:09:34 AM

Just give me a solution to this problem...we have all facilities available

Title: Re: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: wildfyr on October 14, 2018, 08:19:18 PM

https://en.wikipedia.org/wiki/Reactive_dye a plethora of options

Title: Re: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: Shabayer on October 26, 2018, 03:17:43 PM

what binder i can use??

Title: Re: Fix A Dye On Whatman Filter Paper No.1 that bleeds out into the sample solution
Post by: wildfyr on October 26, 2018, 04:54:07 PM

What are you trying to bind to the paper? Literally any dye?