⭕ Phoenix 8000 UV-Persulfate TOC Analyzer With STS 8000 TOC AutoSampler in perfect working order and condition. Less than 3 years old. The UV persulfate method of TOC analysis technique achieves outstanding analytical accuracy, precision and long-term calibration stability due to its ability to inject high sample volumes (up to 20 mL) and low system background. Shipping or local pickup can be arranged.