There are many techniques used in analytical labouratory today, and many new ones are in the process of development. Each technique or method has its own usefulness but not without limitations, hence multiple approach is necessarily most of the times. By the correct understanding of instrument and technique used and coupled with experienced application, getting down to finding the root cause will not only be simpler but quicker. Call and discuss with us, we would be able to share some lights to your issue at hand[/span7][/row]