Total Organic Carbon Analyzer (TOC Analyzers)

A total organic carbon analyzer (also referred to as TOC analyzers) measures the amount of total organic carbon present in a liquid or water sample. TOC detection is important because of the effects that TOCs may have on health, not to mention the environmental effects and implications for the pharmaceutical manufacturing processes. Since all total organic carbon analyzers only measure total carbon, a TOC analyzer always requires some accounting for the inorganic carbon (IC) that is always present. TOC analyzers, including a portable TOC analyzer, utilize the same basic technique where acid is added to the liquid sample to remove IC. At this point, the IC is converted into carbon dioxide gas. It is then stripped out of the liquid by a carrier gas where the remaining inorganic carbon-free sample is then oxidized and the carbon dioxide generated from the oxidation process is directly related to the TOC total organic carbon in the sample. There are several methods for introducing the sample to TOC analyzers, including using a syringe, autosampler, and loop sampling. An important specification for total organic carbon analyzers is the measuring range. Carrier gas flow rate, average analysis time and process temperature are important as well for total organic carbon analysis.

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CompanyShimadzuShimadzuShimadzuShimadzu
ItemTOC-L Series Total Organic Carbon AnalyzersTOC-1000e Online TOC Analyzer for Pure Water AnalysisTOC-4200 Online Total Organic Carbon AnalyzerTOC-VWS Wet Oxidation TOC Analyzer
Citations
(1)
Reviews
Catalog NumberTOC-LCPH / TOC-LCSH / TOC-LCPN / TOC-LCSNTOC-1000eTOC-4200TOC-VWS / TOC-VWP
Price
Measurement Mode(s)TC, IC, TOC and NPOC;
(POC, TOC via POC + NPOC and TN : Optional)
TOC, conductivity (or specific resistance), and temperatureTC, NPOC, IC-POC M, TNTC, IC, TOC, NPOC
Oxidation MethodCombustion Catalytic Oxidation Method
(Non-Dispersive Infrared detection Method)
InquireCombustion Oxidation / Non-Dispersive Infrared Gas DetectionWet Chemical (Heat-UV-Persulfate)
Measuring RangeTC: 0 to 30,000 mg/L, IC: 0 to 35,000 mg/LTOC: 0 to 2000 µg/L; Conductivity: 0.023 to 206 µS/cm (without temperature correction)5 to 20,000 mgC/LTC: 0-3,500 mg/L, IC: 0-3,500 mg/L
Detection Limit4 or 50 ug/L (TC)TOC: 0.1 µg/LInquire0.5 µg/L
Sample Volume10 to 2,000 ul (variable)InquireInquire350 to 20400 µl variable
Measurement AccuracyInquireInquireWithin +/-2 % (×2 to ×20); within ±5 % (×21 to ×50) (Dilution accuracy)CV 1.5% to 2% max
Measuring Time3 or 4 minInquire4 min~ 4 minutes
DescriptionThe TOC-L series of TOC analyzers adopts the 680°C combustion catalytic oxidation method, which was developed by Shimadzu and is now used worldwide for such methods as EPA 415.3, SM 5310B, and ASTM D7573. While providing an ultra-wide range of 4 µg/L to 30,000 mg/L, these analyzers boast a ... Read MoreDelivering high sensitivity and low detection limits, reaching 0.1 µg/L, Shimadzu‘s TOC-1000e Online Total Organic Carbon analyzer is perfectly suited to meet the demands for ultra-pure water in pharmaceuticals, semiconductors, food & beverages, chemical packaging, and precision equipment ... Read MoreShimadzu’s highly advanced on-line TOC-4200 analyzer excels in a wide range of water analysis applications, from continuous monitoring of plant/boiler water and management of wastewater treatment plant influent and effluent to management of the water in manufacturing processes. Advanced ... Read MoreShimadzu’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 and shorter analysis times. The analyzer can handle particulates up to 1.6 mm in ... Read More
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