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Total organic carbon analyzer (TOC analyzer), TOC-L CSN

Shimadzu (Japan)

Description

Total Organic Carbon (TOC) Analyzer TOC-L CSN employs Shimadzu’s proprietary thermocatalytic oxidation method at 680 °C. Unlike systems operating at 900 °C, oxidation at 680 °C prevents glass-like salt deposits from forming on the catalyst. Under these conditions, salts form a porous residue that is easily rinsed away, ensuring long catalyst and reactor tube life.

This temperature is sufficient to completely oxidize any organic molecules, allowing rapid and precise determination of organic compounds in water over a wide carbon concentration range — from 4 µg/L to 30 000 mg/L. The TOC-L series efficiently analyzes various sample types, from ultrapure water to heavily contaminated wastewater. The TOC-L CSN model features dual control, making operation even more versatile and user-friendly.

Benefits

  • High accuracy in determining organic compounds
  • Extended catalyst lifetime through low-temperature oxidation
  • Wide range of measurable carbon concentrations
  • Capability to analyze diverse sample types
  • Dual control for convenient operation

Features

  • Thermocatalytic oxidation method: 680 °C – Nondispersive IR detection
  • Parameters: TC, NPOC; options – IC, POC, TOC (=TC–IC, =NPOC+POC), TN
  • Sample type: Aqueous (optional solid or gas)
  • Measurement range: TC 0–30 000 mg/L; IC 0–30 000 mg/L; TN 0–10 000 mg/L; POC 0–500 mg/L
  • Measurement accuracy: CV ≤ 1.5 %
  • Dilution function: 2–50× automatic (via syringe pump)
  • Carrier gas: High-purity air (CO, CO₂, HC ≤ 1 ppm) or nitrogen (except in total nitrogen mode)

Technical Specifications

Measurement method 680 ºC catalytic combustion – nondispersive IR detection
Control Dual control
Measured parameters TC, NPOC. Option: IC, POC, TOC (=TC-IC, =NPOC+POC), TN
Sample type Aqueous (optionally solid or gaseous)
Measurement range TC: 0–30,000 mg/L, IC: 0–30,000 mg/L, TN: 0–10,000 mg/L, POC: 0–500 mg/L
Measurement accuracy CV 1.5% max.
Dilution function Dilution by 2–50 times (automatic via syringe pump)
Carrier gas High-purity air (CO, CO₂, HC content ≤ 1 ppm). Nitrogen gas can be used (except when operating with total nitrogen attachment).

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