I'm a final year student of Bio-sciences, my project topic is requiring me to test for nitrate contents of different water samples but I really dnt knw how to go about this,cuz I nid to test and also measure the nitrate concentration!
Pls anyone that can be of help?

You could have easily goggled for help.

Download this link: http://www.cwc.gov.in/main/HP/download/Standard%20Analytical%20Procedures.pdf

Its a pdf file that contains standard analytical tests for water.

I tink it involves brown ring test in which freshly prepared FeSO4 is added to d water sample nd H2SO4 is added slide by slide.....dere will b formation of a brown ring(FeSO4.NO) which indicate d presence of nitrate in d water...for more details,add me on 2go...ma username=Damscrob.

Tanx guyz!
@ the arbiter, the link u posted did not open (it says error ....)
@ damscrob, the test u described, will it b able to give me the concentration of d nitrate in mg/l?

Was busy and didnt check my mails for a while. The site is a government website. I suspect Nigerian IP addresses are blocked from accessing it because i just tested it and it still works.

Its a 5mb pdf file. Post ur email and i'll send it to u.

Regards.

Damscrob: I tink it involves brown ring test in which freshly prepared FeSO4 is added to d water sample nd H2SO4 is added slide by slide.....dere will b formation of a brown ring(FeSO4.NO) which indicate d presence of nitrate in d water...for more details,add me on 2go...ma username=Damscrob.

....where will d nitrate come 4rm?...water?....don't knw wat u're trying 2 say...although d reagents u listed are correct....but brown ring test is simply a qualitative test 4 Tri-oxo Nitrate V ion in a given sample salt!...not water!