A mainstay of environmental and quality control chemistry, TOC analyzers measure the carbon content of dissolved and particulate organic materials in water. The carbon measured may arise from any combination of living or dead organisms and chemical contamination. TOC often serves as a surrogate for more difficult measurements, for example, contamination from petrochemicals, solvents, pharmaceuticals, chlorinated industrial chemicals and pesticides. It can also act as a screen for additional analysis.
Top 5 Questions You Should Ask When Buying a TOC Analyzer
1. Is the TOC technology suitable for your specific application or water conditions? Many TOC technologies may be suitable only for waters with a narrow range of organic or inorganic contaminants.
2. Are different models available to meet your current and future sampling needs (i.e. online, portable, laboratory)? Do these models use similar technology to simplify method transfer or data comparability from lab to online?
3. Does the company offer the documentation and support necessary to help meet applicable industry or government regulations?
4. What is the company’s level of experience supporting sales of TOC analyzers in your specific industry? Do they understand the unique challenges specific to your application?
5. What type of service, applications, and technical support are available during and after the purchasing process?
Primary purpose for TOC analyzers in our readers’ labs, based on our latest survey:
| Research | 29% |
| Quality control | 34% |
| Clinical | 1% |
| Processing | 10% |
| Other | 27% |
Types of TOC analyzers respondents are using in their labs:
| Benchtop | 75% |
| Portable | 11% |
| Online | 13% |
| Other | 1% |
Our readers’ primary reasons for purchasing a TOC analyzer:
| Replacement of an aging TOC analyzer | 31% | | Addition to existing systems; increase capacity | 29% | | First-time purchase | 19% | | Setting up a new lab | 16% | | Other | 5% |
Top ten factors/features that most influence the decision making process when buying a TOC analyzer: | Reliability | 87% | | Accuracy | 87% | | Ease of Use | 84% | | Low maintenance/easy to clean | 83% | | Low operating cost | 80% | | Service and support | 79% | | Price | 71% | | Warranty | 60% | | Speed | 56% | | Ease of installation | 50% |
Recently Released TOC Analyzers
Sievers InnovOx
• Achieves superior TOC recoveries regardless of organic compounds and particulate impurities in the sample
• New enhancements include faster, more intuitive navigation; additional user-managed security options; and conversion factors for reporting units like BOD or COD
• A new repeat criteria option improves calibration or grab sample speed GE Analytical Instruments
www.geinstruments.com
BioTector
• Provides maximum uptime and reliability due to a patented self-cleaning oxidation technology that easily handles difficult samples and significantly reduces maintenance
• Eliminates build up issues from salts, particulates, fats, oils and greases that lead to drift and high maintenance
• Offers reliable, continuous monitoring and real-time process control Hach
www.hach.com
TOC-L
• Opens up new frontiers in the field of materials characterization
• Ultra-high heating and cooling rates add a new dimension to the study of thermally induced physical transitions and chemical processes
• Enables users to investigate effects that were previously impossible to measure
• Features Fast response sensor and wide temperature range Shimadzu
www.ssi.shimadzu.com
Multi N/C® 2100/2100 S
• Equipped with an excellent injection technique for particle containing samples
• Includes VITA®, the FR NDIR detector and catalytic high temperature combustion up to 950°C
• Provides sample feed by valve- and septum-free direct injection
• Upgradeable for simultaneous determination of TNb (ChD oer CLD)
• Features auto-protection Analytik Jena
www.analytik-jena.com TOC Manufacturers |
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