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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CompanyShimadzuShimadzuShimadzuShimadzuShimadzu
ItemTOC-1000e S Online Total Organic Carbon AnalyzerTOC-1000e Online TOC Analyzer for Pure Water AnalysisTOC-4200 Online Total Organic Carbon AnalyzerTOC-VWP Wet Oxidation TOC AnalyzerTOC-VWS Wet Oxidation TOC Analyzer
Citations
(1)
Reviews
Catalog NumberTOC-1000e STOC-1000eTOC-4200TOC-VWS / TOC-VWP
Price
Measurement Mode(s)InquireTOC, conductivity (or specific resistance), and temperatureTC, NPOC, IC-POC M, TNInquireTC, IC, TOC, NPOC
Oxidation MethodInquireInquireCombustion Oxidation / Non-Dispersive Infrared Gas DetectionWet Oxidation (persulfate + UV)Wet Chemical (Heat-UV-Persulfate)
Measuring Range0 to 500 µg/LTOC: 0 to 2000 µg/L; Conductivity: 0.023 to 206 µS/cm (without temperature correction)5 to 20,000 mgC/LInquireTC: 0-3,500 mg/L, IC: 0-3,500 mg/L
Detection LimitInquireTOC: 0.1 µg/LInquire4 µg/L0.5 µg/L
Sample VolumeInquireInquireInquireInquire350 to 20400 µl variable
Measurement Accuracy±5% (500 µg/L sucrose)InquireWithin +/-2 % (×2 to ×20); within ±5 % (×21 to ×50) (Dilution accuracy)InquireCV 1.5% to 2% max
Measuring TimeInquire2.5 min, 5 min, 10 min, 15 min, 30 min, 1 hr, 2 hrs, 4 hrs, 12 hrs, or 24 hrs measurement cycle4 minInquire~ 4 minutes
DescriptionAs semiconductor miniaturization continues to advance, even trace-level organic contamination in ultrapure water can directly impact process stability and yield, making precise, reliable monitoring of TOC essential. Conventional on-line TOC analyzers often struggle to detect hard-to-oxidize ... 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 MoreInquireShimadzu’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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