Boric acid and urine specific gravity

Re: Boric acid and urine specific gravity

Saskia Quinn — Tue, 24 Feb 2009 20:37:35 GMT

[quote user="ej1574"]

no offence meant, i was replying to the original post - as the specific gravity of any solution is the density of it compared to water, it seems to make common sense to me that dissolving anything in a solution will make it denser therefore increase it's SG, and when you put something in a boric acid tube the boric acid will become dissolved in the solution.

[/quote]

hehe, no worries! I apologise for my comment! I must have been a tad grouchy that day!! Thank you!

Paula x

Re: Boric acid and urine specific gravity

Emma Jarratt — Mon, 23 Feb 2009 20:13:26 GMT

Re: Boric acid and urine specific gravity

Saskia Quinn — Sun, 22 Feb 2009 14:34:39 GMT

[quote user="ej1574"]

common sense would be that it should affect SG

[/quote]

I have plenty of common sense, thank you and to me common sense would not let me know that

Re: Boric acid and urine specific gravity

Emma Jarratt — Sun, 22 Feb 2009 14:17:32 GMT

common sense would be that it should affect SG - anything being dissolved into solution should affect SG - whether it's significant or not is the issue.

google 'boric acid urine specific gravity'

http://www.starplexscientific.com/Resources/Studies/BoricAcidHandout.pdf

states that SG increased by an average of 0.005 with boric acid preservative (although i would think this should depend on the volume of urine vs the amount of boric acid).

Re: Boric acid and urine specific gravity

Nick Shackleton — Sat, 21 Feb 2009 21:34:01 GMT

Here's a link to a artical about the use of boric acid:

http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=502502&blobtype=pdf

Re: Boric acid and urine specific gravity

Dobbie — Sat, 21 Feb 2009 21:06:36 GMT

I didn't think so either, but my assessor seems to think so.....hhhmmmmm?!

Thanks for your help,

dobbie

Re: Boric acid and urine specific gravity

Saskia Quinn — Sat, 21 Feb 2009 20:19:27 GMT

As far as I know all the boric acid does is preserve the urine for bacteriology. I wouldnt imagine it should affect any result.