Total Organic Carbon Analyzer

TOC-700

The TOC-700 Total Organic Carbon (TOC) Analyzer uses UV + persulfate oxidation and NDIR detection principle. It can detect water samples with TOC concentrations ranging from 0.001 mg/L to 100.0 mg/L, featuring high sensitivity, accuracy, and good stability.

Key Features

UV/persulfate-NDIR, 0.001-100mg/L

10.4" touch, 4 modes, NDIR, precise pump

USP/ChP/21 CFR 11, autosampler & online

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Brand: LabNav
Commodity name: Total Organic Carbon Analyzer
Commodity ID: TOC-700
产品卖点1: UV/persulfate-NDIR, 0.001-100mg/L
产品卖点2: 10.4" touch, 4 modes, NDIR, precise pump
产品卖点3: USP/ChP/21 CFR 11, autosampler & online

Product Details

Working Principle

Difference method: The sample is fully oxidized to carbon dioxide and water by UV/persulfate oxidation. After condensation and dehydration, CO₂ is measured using a non-dispersive infrared (NDIR) detector to determine total carbon (TC) content. The inorganic carbon in the sample is decomposed into carbon dioxide and water by acid reagent. After condensation and dehydration, CO₂ is measured by NDIR to determine total inorganic carbon (TIC) content. TOC = TC – TIC.

Direct method: The inorganic carbon in the sample is first decomposed into carbon dioxide and water by acid reagent to remove total inorganic carbon (TIC). Then the organic carbon in the sample is decomposed into carbon dioxide and water by UV/persulfate oxidation. After condensation and dehydration, CO₂ is measured by NDIR to directly determine TOC content.

Applications

Deionized water samples such as water for injection and purified water
Pharmaceutical industry cleaning validation
Environmental water, such as tap water, surface water
Chemical process water (cleaning water, cooling water, recycled water, etc.)
Laboratory research

Patents

ZL 2014 2 0386326.8—A conductivity electrode with adjustable cell constant
ZL 2014 2 0386169.0—A device for detecting total organic carbon in ultrapure water

Standards

USP <643> Total Organic Carbon (TOC) method
Chinese Pharmacopoeia 2020, Vol. IV, 0682 – Determination of total organic carbon in water for injection
GMP Annex – Computerized System Validation
21 CFR PART 11

Software Description

The software meets GMP computerized system validation requirements:
Electronic Signature
Login via username and password, each unique.
Password length requirements enhance security.
The manual screen lock function ensures operational uniqueness and safety.
Access Control
Multi-level permission settings.
Administrators can assign different permissions to operators, ensuring personnel only have privileges commensurate with their job functions.
Data Integrity
Audit trail ffunction isenabled and cannot be turned off.
All test results are saved and cannot be modified or deleted.
All operations (any user entry) are recorded.
If a test method is modified, the changed parameters are recorded.
Data can be exported and backed up to protect stored data for future retrieval.

Features

Complies with EP, USP, and 2020 Chinese Pharmacopoeia requirements;
Four detection modes: TC, TIC, TOC, and NPOC, all in the same reactor.
High-reflectivity gold-plated gas cell, a high-concentration infrared light source, and a high-sensitivity infrared detector ensure excellent NDIR performance and sufficient sensitivity and accuracy for ppb-level measurements.
Precision electromagnetic metering pump ensures accuracy and stability of sample injection volume.
Dual-tube electronic condensation dehydration technology;
Real-time visible detection curve for better visualization;
Multiple real-time self-monitoring functions for temperature, pressure, and flow rate;
User definable calibration curve based on range, suitable for any water sample measurement;
Optional online module for continuous monitoring;
Optional autosampler for unattended operation, saving labor and time.

Also see accessories.

Specifications

Analysis Method	UV/persulfate oxidation – NDIR detection principle
TOC Detection Range	0.001 mg/L – 100.0 mg/L
Carrier Gas	High-purity nitrogen (CO₂-free air)
Oxidant	Sodium persulfate solution
Analysis Time	3–8 min
Accuracy Error	±5%
Repeatability Error	≤3 %
Ambient Temperature	0–40 ℃
Relative Humidity	≤ 85%
Detectable Items	TC, IC, TOC, NPOC
Injection Volume	50～6000μL
Sample Temperature	0-100℃
Acid Reagent	Phosphoric acid solution
TOC Detection Precision	0.001mg/L
Zero Drift	±2%/D
Span Drift	±2%/D
Power Supply	220±22V AC 50±1Hz
Power Consumption	150W
Dimensions (W×D×H)	42 cm × 36.5 cm × 38 cm
Weight	21 kg