Urinalysis is a noninvasive technique for diagnosis and evaluation of many disease states in humans and domestic animals. However, sulfate is seldom measured because urine is a complex mixture containing potentially interfering substances which complicate analysis by many methods. The best standard method currently available is ion chromatography, which is costly and not widely available. Our laboratory has previously measured sulfate levels in artificial urines using conductometric titration, which is simple and inexpensive, with good results, and this study has been expanded to include domestic animals which can provide adequate urine volumes for analysis. A group of mixed breed domestic pigs and a group of primarily quarter horses were studied. Analysis was complicated by high phosphate levels in the pig urine, but this was successfully removed by precipitation as magnesium ammonium phosphate prior to sulfate titration. The horse urine contained no phosphate, but some samples contained significant carbonates, which were measured by titration with acid. Results were verified using ion chromatography.

Determination of urinary sulfate levels in horses and swine by conductometric titration

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.