USP Monograph Nicotine Purity Testing via HPLC, GC, and Polarimetry

I need a laboratory for nicotine content and purity testing in accordance with the USP monograph. The preferred analytical techniques include:

• High-Performance Liquid Chromatography (HPLC)

• Gas Chromatography (GC)

• Polarimetry

The lab must demonstrate USP compliance. Additional information is requested regarding sample submission guidelines, turnaround times, and pricing.