Shimadzu’s TOC-VW can be operated as a UV/Persulfate TOC, a Heated/Persulfate TOC, or as a unique Heated-UV-Persulfate TOC system. The three oxidation methods ensure rapid breakdown of difficult-to-oxidize compounds up to 1.6 mm in diameter and and shorter analysis time. The most powerful wet chemical TOC on the market, it is capable of measuring down to 0.5 ppb of TOC and up to 3000 ppm.

Rapid Breakdown of Difficult-to-Oxidize Compounds

  • TOC-VWS: Wet oxidation/NDIR method, standalone
  • TOC-VWP: Wet oxidation/NDIR method, PC-controlled


  • Newly designed high-sensitivity NDIR detector - achieves ultra-high sensitivity measurements, eliminates false peaks, and contains 5 orders of magnitude linearity
  • Sensitivity and accuracy enhanced by minimizing the reagent blanks that hinder accurate analysis
  • Over-range samples can be compared with up to three calibration curves automatically
  • Powerful oxidation through a combination of peroxosulfuric acid, UV illumination, and heating
  • No need for purging of reagent bottle reduces consumption of carrier gas
  • Random-access autosampler control
  • Multipoint calibration curves in user-selectable concentration
  • Each sample can be automatically compared
  • Sample and standard peak profiles can be viewed


Wet oxidation Total Organic Carbon AnalyzerPC-Controlled Total Organic Carbon Analyzer
Measurement MethodWet oxidation/NDIR
Operation MethodStandalonePC-controlled
Measured ItemsTC,IC,TOC,NPOC
Applicable SamplesAqueous sample
Measurement RangeTC:0 to 3500
IC:0 to 3500
Detection Limit0.5 µg/L
Measurement accuracy (Responsibility)CV 1.5% max
CV 2% max at 1000 mg/L or higher
Measuring TimeTC: approx 4 mins
IC: approx 4 mins
Sample InjectionAutomatic Injection
Sample Injection volume350 to 20400 µl variable
IC pre-treatmentAutomatic internal acidification and sparging
Automatic dilutionDilution factor 2 to 50
Gas ConsumptionApprox 3000 L/month (NPOC)
(operating conditions: 8 hours/day x 5 days/wk)
Operating KeysBuilt-inUse PC
DisplayBuilt-in LCDUse PC
PrinterCENTRONICS, ESC/PPC printer
Ambient temperature range5 to 35 deg C
Power supplyAC 100 ~ 127V ± 10%, MAX 350 VA
AC 220 ~ 240V ± 10%, MAX 350 VA
DimensionsApprox. (W)440 x (D)560 x (H)460mm
(excluding protrusions)
WeightApprox. 40 kg