Biurets reagent

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gotolady
Posts: 140
Joined: 02 Nov 2012, 14:11
State/Location: NSW

Biurets reagent

Post by gotolady »

Welcome back. I hope you had a good break and not too stressed by the increased workload (flat out trying to keep on top of orders).
I am having trouble sourcing biurets reagent solution. I would appreciate any help.
Thanks in advance
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AnnNos
Posts: 190
Joined: 17 Nov 2011, 07:32
Job Title: Science Assistant
State/Location: NSW

Re: Biurets reagent

Post by AnnNos »

We use 1M sodium hydroxide and 0.1M copper sulfate dropper bottles and get a good result. A higher molarity of the sodium hydroxide is recommended but then we can't use it with years 7-10.
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Lyn
Posts: 706
Joined: 16 May 2006, 10:00
Job Title: Lab Assistant (Technician)
School: St. John's Catholic College
Suburb: Darwin
State/Location: NT

Re: Biurets reagent

Post by Lyn »

Same here except the copper sulfate is usually 0.5M. It makes a nicer purple. Gives it that WOW! factor. :thumbup:
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superbug
Posts: 392
Joined: 30 Apr 2012, 09:59
State/Location: NSW

Re: Biurets reagent

Post by superbug »

We use 2M sodium hydroxide. So I checked CSIS (as we have a green dot on it) under <4M to >1M sodium hydroxide and it says its ok to use with yr 7-10 for biuret test. So all good!
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gotolady
Posts: 140
Joined: 02 Nov 2012, 14:11
State/Location: NSW

Re: Biurets reagent

Post by gotolady »

What a fabulous lot you are. Thanks heaps :clap3:
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