GE Analytical Instruments is a leader in total organic carbon analysis instruments. The company's first total organic carbon analyzer, the Model 800, was originally developed for NASA to monitor drinking water for astronauts on the International Space Station. After its introduction into commercial production, the Sievers Model 800 quickly gained wide acclaim due to its superior accuracy and ease of use, becoming the best-selling total organic carbon analyzer in the pharmaceutical industry and a leader in microelectronics applications. The next generation of the Sievers Model 800, the Sievers 900 series, was launched in 2004. The Sievers 900 series has three specific-purpose models with improved automation and reliability.

 Sievers Membrane Conductivity Detection - Unsurpassed TOC Detection:

  Sievers Membrane Conductivity Detection has proven to be an extremely reliable technique for the determination of Total Organic Carbon (TOC). Unlike instruments using Non-Dispersive Infrared (NDIR) detection, conductivity detection exhibits a dynamic range of six orders of magnitude and extremely stable calibration that is not susceptible to significant fluctuations over time. This reduces the frequency of calibration without sacrificing analytical performance. Patented membrane conductivity detection technology uses a gas permeable membrane that selectively transmits only CO2 generated by the oxidation of organic matter. By preventing interference from oxidative CO2 measurements by, for example, acids, bases and halogenated compounds, the membrane conductivity method achieves unmatched sensitivity, selectivity, stability, accuracy and precision.

The Sievers 900 Series TOC Analyzer is the next generation of the popular Sievers 800 model. Based on GE's patented, proven analytical technology, the 900 Series analyzers offer unsurpassed ease of use and analytical performance, versatility and reliability. Designed to meet different application needs and regulatory requirements. The 900 Series offers three models - 900 Laboratory, 900 Online and 900 Portable.

Application Industries:

The main applications of the 900 Series include pharmaceuticals, municipal water and analytical laboratories, microelectronics, power, and general TOC testing.

Pharmaceutical:

The 900 Series is designed to meet the most stringent pharmaceutical regulations, ensuring full compliance in FDA-mandated environments. All 900 Series analyzers meet the following regulations: United States Pharmacopoeia (USP) <643> Total Organic Carbon, European Pharmacopoeia (EP) 2.2.44 Total Organic Carbon, Indian Pharmacopoeia (IP) 2.4.30, Chinese Pharmacopoeia (ChP) Annex VIII R, Japanese Pharmacopoeia 16th Edition (JP 16) 2.59 Purified Water and Water for Injection Monograph. When used for cleaning validation, the instrument's [Autoreagent] function allows accurate analysis of samples of unknown composition and concentration.

Municipal Water and Analytical Laboratories:

The 900 Series analyzers monitor TOC in raw and finished water to optimize flocculant dosage and report compliance with regulations. The analyzers use methods approved by the U.S. Environmental Protection Agency (USEPA), including the USEPA Disinfectants and Disinfection Byproducts Regulation (D/DBP Regulation), Standard Method 5310 C, and USEPA 415.3.

Microelectronics:

The 900 Series analyzers measure TOC, IC, and TC to help companies manage every step of their water purification system and ensure maximum uptime. The analyzers accurately measure system feed water, reverse osmosis (RO) water, and final product water.

Power:

Controlling organic and carbonic acid levels in power water is critical to minimize corrosion in power facilities and keep water systems optimized. The unmatched analytical range of the 900 Series analyzers enables the use of one sensitive analyzer for TOC and CO2 measurements throughout the facility. The 900 Series is ideal for detecting possible organic contamination in power and heat cogeneration water. The 900 Series analyzers use ASTM approved methods including D 5904-96, 5997-96, 6317-98.

General TOC determination:

The 900 laboratory and portable analyzers have a wide measurement range, outstanding analytical performance and ease of use, making them ideal for analytical laboratories. Efficiently and accurately measure water samples from different application areas with different sample matrices and concentrations.

Features and advantages

      Unparalleled ease of use. The 900 Series analyzers are easy to install, operate and maintain. Provides :

     1. Quick installation and operation. Factory pre-calibrated, the instrument can be installed and ready for analysis in less than 1 hour. No special training is required for instrument setup, operation, and maintenance.
     2. Minimal maintenance. The analyzer requires minimal manual labor and maintenance - typically only a few hours per year. The modular design allows for very fast replacement of consumables.
     3. Fully contained sealed housing. Using internal reagent packs, the instrument is completely sealed in a rugged, dust- and splash-resistant housing. No external chemicals or gases are required.
     4. Intuitive touch screen interface. Large, color display, easy to set instrument parameters, view data, review data.
     5. Convenient data transfer. Data download can be connected through the USB port, or standard serial port, parallel port and Ethernet. 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. GE's patented Sievers membrane conductivity TOC detection technology features a conductivity sensor that is not prone to drift and fluctuation. Excellent calibration stability is achieved. It is recommended that calibration be done only once a year and is easy to perform on site. In contrast, TOC analyzers using NDIR detection methods often require weekly or even daily calibration.
    7. Reliability. A team of scientists and engineers from GE Analytical Instruments designed the 900 series using advanced materials and modular components to extend operating life and make it easier to operate on site. Achieve higher reliability with maximum uptime. The carbon dioxide selective permeable membrane dedicated to the detector does not need to be replaced throughout the life of the instrument!
     8. Excellent performance over a wide analytical range. The 900 series has excellent accuracy and precision over a dynamic range of 0.03 ppb-50 ppm. From ultrapure water to drinking water and industrial process water, the analyzer provides excellent analytical performance for a variety of applications and different water quality types.
     9. High analytical throughput and efficiency. The 900 series minimizes operator manual involvement to achieve high automation and high analysis speed.
Automated operations include calibration, validation and data analysis reports, combined with a 4-minute analysis time to achieve high measurement throughput. During diagnosis, the analyzer generates TOC data a few minutes after connecting the sampling tube. 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 aspirated samples. For online and portable analyzers, the patented integrated online sampling system (iOS) simplifies the aspiration 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 the aspiration function for spot checking TOC samples from other locations in the water system.

TOC Standards:

    Sievers certified standards include a variety of ready-to-use TOC standards for calibration, linearity, and USP/ChP system suitability. Sievers standards are used in 900 Series analyzers and can also be used in most other brands of TOC analyzers. GE's large-scale production capacity significantly reduces costs compared to users preparing their own standards. Based on GE's professional experience in standard preparation and storage, Sievers standards are guaranteed to be accurate and have a longer shelf life even at very low concentrations.

    900 Laboratory Analyzer

    The Sievers 900 Laboratory Analyzer offers excellent analytical throughput for laboratory TOC determinations. Automated calibration and verification processes, fast analysis times, automatic reagent adjustments, and high-capacity GE autosamplers combine to deliver unmatched efficiency, flexibility, and ease of use. The 19.2 cm (7.6 in) wide footprint saves valuable desktop space. The laboratory analyzer is ideal for both specific TOC determinations and general-purpose TOCC determination, are optimized to meet or exceed the most commonly used pharmacopeia and USEPA regulations in force today. They are ideal for routine analysis of TOC samples and are also well suited for analytical laboratories with widely varying sample matrices and concentrations.

    900 On-line Analyzer

    The Sievers 900 On-line TOC Analyzer is designed for continuous monitoring of water. The wall-mounted analyzer is housed in an IP-45-rated sealed enclosure to withstand the harsh water treatment environment. In addition to the continuous TOC analysis mode, individual aspirated samples, including standards, can also be injected using the Sievers iOS.

    900 Portable Analyzer

    The Sievers 900 Portable TOC Analyzer is the most versatile of the three models in the 900 Series. Weighing only 12.5 kg (27.5 lb), it can be used anywhere it is needed in a water treatment environment. The lightweight and compact design makes it a powerful troubleshooting tool that can be hand-carried to any location in the water system. The portable analyzer can also be used as a laboratory instrument for individual sample analysis, for continuous on-line measurement, or in conjunction with a GE autosampler. Due to its unique design, the 900 Portable won the Instrument Business Outlook (IBO) 2005 Gold Award for Best Portable Instrument Industrial Design.

    900 Series Options and Accessories:

    Autosampler (with Sievers DataPro 900* software):

    GE Autosamplers can be used with the 900 Lab and Portable models to automate laboratory applications. Sampling can be done from any position with high sample placement capacity (63 positions for 40mL or 60mL bottles, 120 positions for 35mL or 17mL bottles). Optional needle cleaning station. DataPro 900 software combines GE autosamplers with the 900 analyzer to provide higher measurement throughput, such as automatic calibration and verification protocols. DataPro 900 also provides user sampling flexibility, customizable sample protocols and user-defined sampling quantities.
    900 Turbo Mode:

    The 900 online and portable analyzers can use Turbo mode, which is particularly suitable for a wide range of recycled water measurements, which require fast process control feedback. Turbo analyzers measure from 0.20 to 10,000 ppb. TOC, IC and TC measurements are updated every 4 seconds, ensuring that even short-lived drifts are captured.

    900 Inorganic Carbon Remover ICR:

    For samples where the IC is much higher than the TOC, the 900 ICR reduces the level of Inorganic Carbon (IC) in the sample, giving a more accurate TOC result. The ICR can be placed inside the 900 Inline or next to the 900 Lab and 900 Portable.

    DataGuard* 21 CFR Part 11 Compliance Support:

    DataGuard* software and firmware provide comprehensive support for 21 CFR Part 11 requirements. This includes user login security with multiple access levels, electronic signatures, and automatic creation of independently generated tracking trails.