SieversMembrane conductivity detection method - non transcendental TOC detection:

The Sievers membrane conductivity detection method has been proven to be an extremely reliable technique for determining Total Organic Carbon (TOC). Unlike instruments that use non dispersive infrared (NDIR) detection methods, conductivity detection methods exhibit a dynamic range of six orders of magnitude and extremely stable calibration performance, making them less prone to significant fluctuations over time. This method can reduce the frequency of calibration without affecting the analysis performance. The membrane conductivity detection technology uses gas permeable membranes to selectively only pass through CO2 generated by the oxidation of organic matter. The membrane conductivity method achieves unparalleled sensitivity, selectivity, stability, accuracy, and precision by preventing interference from acids, bases, and halogenated compounds in the determination of CO2 generated by oxidation.

GE Sievers 900 Series TOC Analyzer from the United StatesIt is the new generation product of the best-selling Sievers 800 model. Based on GE's proven analytical techniques, the 900 series analyzer provides unparalleled ease of use, analytical performance, versatility, and reliability. Designed to meet different application and regulatory requirements. The 900 series offers three models -900 Laboratory, 900 Online, and 900 Portable.

GE Sievers 900 Series TOC Analyzer from the United StatesCharacteristics and advantages：

Unparalleled ease of use. The 900 series analyzer is easy to install, operate, and maintain. provide：
1. Quick installation and operation. After pre calibration by the factory, the instrument can be installed and prepared for analysis within 1 hour. The setup, operation, and maintenance of the instrument do not require specialized training.
2. Minimal maintenance. The analyzer requires minimal manual labor and maintenance - typically only a few hours per year. The modular design makes the replacement of consumables very fast.
3. Internally enclosed sealed casing. Using an internal reagent kit, the instrument is completely sealed in a sturdy dust-proof and splash resistant casing. No external chemical reagents or gases are required.
4. Intuitive touchscreen interface. Large, color display screen, easy to set instrument parameters, view and review data.
5. Convenient data transmission. Data download can be connected to Ethernet through a USB port, standard serial port, or parallel port. The data can be opened directly in Microsoft Excel. Online and portable models also support analog signal output for data transmission.
6. Extended 12-month calibration stability. The characteristic of GE's Sievers membrane conductivity TOC detection technology is the creation of a conductivity sensor that is not prone to drift and fluctuations. Achieved outstanding calibration stability. It is recommended to calibrate only once a year and it is easy to do on-site. By contrast, TOC analyzers using NDIR detection methods often require weekly or even daily calibration.
7. Reliability. GE Analytical Instruments has designed the 900 series by a team of scientists and engineers, using advanced materials and module components to extend its operating life and make it easier to operate on site. Achieved higher reliability within the longest normal operating time. The carbon dioxide selective permeation membrane specifically designed for detectors does not require replacement throughout the entire lifespan of the instrument!
8. Excellent performance over a wide analytical range. The 900 series has excellent accuracy and precision within the dynamic range of 0.03 ppb to 50 ppm. From ultrapure water to drinking water and industrial process water, analyzers provide excellent analytical performance for various applications and different water quality types.
9. High analytical throughput and efficiency. The 900 series aims to achieve high automation and analysis speed by minimizing manual operator involvement in work.
Automated operations include calibration, validation, and data analysis reports, combined with a 4-minute analysis time, to achieve high measurement throughput. During diagnosis, after connecting the sampling tube for a few minutes, the analyzer generates TOC data. The Autoreagent function automatically sets the optimal flow rate for each sample, eliminating the need for user intervention and data interpretation to select the appropriate flow rate.
10. Online and sample collection. The integrated online sampling system (iOS) for online and portable analyzers simplifies the inhalation of external standards and samples. The operator does not need to remove the instrument from the continuous sample source or change the structure of the sample injection. The iOS system even includes a feature to extract TOC samples from other locations in the water system.

Application industry:

The main applications of the 900 series include pharmaceuticals, municipal water and analysis laboratories, microelectronics, electricity, and conventional TOC detection.
pharmacy:
The 900 series is designed to meet the strictest pharmaceutical regulatory requirements, ensuring full compliance in environments regulated by the FDA. All 900 series analyzers comply with the following regulations: United States Pharmacopeia (USP)<643>Total Organic Carbon, European Pharmacopoeia (EP) 2.2.44 Total Organic Carbon, Indian Pharmacopoeia (IP) 2.4.30, Chinese Pharmacopoeia (ChP) Appendix VIII R, Japanese Pharmacopoeia 16th Edition (JP 16) 2.59 Purified Water and Injection Water Monographs. When applied for cleaning validation, the instrument's [automatic reagent] function can achieve accurate analysis of samples with unknown components and concentrations.
Municipal Water and Analysis Laboratory:
The 900 series analyzer monitors the TOC of raw water and finished water to optimize the dosage of coagulants and report compliance with regulations. The analyzer uses methods recognized by the United States Environmental Protection Agency (USEPA), including the USEPA Disinfectants and Disinfection By Products Regulations (D/DBP Regulations), Standard Method 5310 C, and USEPA 415.3.
Microelectronics:
The 900 series analyzer measures TOC, IC, and TC to help the company manage any aspect of the water purification system and ensure the longest running time. The analyzer accurately measures the system's feedwater, reverse osmosis (RO) water, and final product water.
Electricity:
Controlling the levels of organic matter and carbonic acid in power water is crucial to minimize corrosion of power facilities and maintain optimal water systems. The unparalleled analysis range of the 900 series analyzer enables the use of a sensitive analyzer for TOC and CO2 determination throughout the entire facility. The 900 series is suitable for detecting possible organic pollution in electric heating symbiotic water. The 900 series analyzer uses ASTM approved methods, including D 5904-96, 5997-96, 6317-98.
Typical TOC determination:
The 900 laboratory and portable analyzer have a wide measurement range, outstanding analytical performance, and ease of use, making them very suitable for analytical laboratories. Efficiently and accurately measure water samples from different application fields with different sample matrices and concentrations.