TOC Analysis Consumables
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System Reliability and Analytical Excellence
Shimadzu TOC Analysis Consumables
Genuine consumables from Shimadzu are technically optimized to maintain the sensitivity and reliability of Total Organic Carbon (TOC) analysis systems. These components, ranging from high-activity platinum catalysts to high-purity combustion tubes, are engineered to withstand the extreme thermal and chemical environments of catalytic combustion and wet oxidation.
Technically, using manufacturer-certified consumables ensures that the oxidation efficiency remains consistent, preventing incomplete mineralization of complex organic molecules and ensuring that the baseline noise of the Non-Dispersive Infrared (NDIR) detector remains at its lowest possible level.
High-Performance Platinum Catalyst for Complete Oxidation
The platinum catalyst is a critical technical component in high-temperature combustion TOC analyzers. Technically, it provides the necessary surface area and active sites to facilitate the complete conversion of organic carbon into carbon dioxide at 680 C. Shimadzu’s genuine catalyst is engineered to prevent sintering and maintain its oxidative activity over thousands of injections. This ensures that even persistent organic pollutants are mineralized efficiently, providing a reliable carbon count for every sample regardless of its chemical complexity.
High-Purity Quartz Combustion Tubes
Technically, the combustion tube serves as the primary reaction vessel where samples are vaporized and oxidized. Genuine quartz tubes are manufactured with high thermal shock resistance and minimal surface impurities to prevent the leaching of carbon or other contaminants. This high level of purity is essential for maintaining ultra-low detection limits in pharmaceutical and semiconductor grade water, ensuring that the background signal does not interfere with trace-level organic carbon measurements.
Specialized Halogen Scrubbers and Dehumidifiers
To protect the sensitive NDIR detector, the system utilizes specialized halogen scrubbers and dehumidifiers. Technically, the halogen scrubber contains high-surface-area materials designed to capture corrosive gases and chlorine produced during the combustion of samples with high salt content. Simultaneously, dehumidification units remove water vapor from the gas stream. This multi-stage gas conditioning ensures that the carbon dioxide gas reaching the detector is dry and free from acidic species that could cause baseline drift or hardware corrosion.
High-Purity Persulfate Reagents for Wet Oxidation
For UV-persulfate wet oxidation systems, the purity of the oxidizing reagents is technically paramount. Genuine sodium persulfate and phosphoric acid reagents are prepared to ensure the lowest possible carbon background. This is crucial for ultra-pure water analysis where detection limits are in the parts-per-billion (ppb) range. Using these certified reagents ensures that the total carbon measured is derived solely from the sample, maintaining the accuracy and repeatability required for stringent water quality standards.
Efficient CO2 Absorbers and Carrier Gas Purification
The technical integrity of the carrier gas is maintained using specialized CO2 absorbers and purification traps. These consumables are designed to remove traces of carbon dioxide and organic vapors from the carrier gas (e.g., air or nitrogen) before it enters the combustion chamber. By ensuring a zero-carbon baseline for the carrier gas, the software can achieve more stable peak integration and higher sensitivity for trace-level organic carbon determination in environmental monitoring.
Durable Septa and High-Sealing Syringe Components
The sample introduction system technically relies on high-quality septa and syringe seals to maintain an airtight flow path. These consumables are manufactured from chemically inert elastomers designed to withstand repeated punctures without shedding particles or allowing atmospheric CO2 to leak into the system. High-sealing syringe plungers ensure precise injection volumes, which is technically necessary for maintaining the linearity of the calibration curve across a wide concentration range.
Particulate Filters and Pre-treatment Consumables
To prevent blockages in the narrow tubing of the auto-sampler, the system utilizes specialized particulate filters. Technically, these filters remove suspended solids from wastewater samples that could obstruct the injection needle or the flow path. By maintaining a clean sample stream, these consumables prevent unexpected downtime and ensure that the TOC analyzer can handle high-matrix samples, such as industrial effluents and sewage, without compromising the instrument's internal hydraulics.
Long-Life UV Lamps for Wet Oxidation Units
The UV lamp is the primary energy source for mineralization in wet chemical oxidation units. Technically, genuine lamps are engineered to provide a stable and intense emission spectrum, ensuring that the photocatalytic breakdown of organic carbon is efficient and consistent. These lamps feature specialized coatings to prevent solarization and maintain a high output of ionizing radiation over their entire operational life, ensuring that the system meets regulatory sensitivity requirements for pharmaceutical water testing.
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