As part of our Lab Products Survey series, Lab Manager has compiled the responses of 175 lab professionals regarding the use of total organic carbon (TOC) analysis.
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. For example, pharmaceutical manufacturers might use liquid chromatography-mass spectrometry to analyze water samples containing unacceptable TOC values. As a quality measure, pharmaceutical regulatory authorities in the U.S., Europe and Japan require TOC analysis of ultrapure water used in biotechnology to ensure the absence of contaminating bacteria.
Purchasers of TOC analyzers value ease of use, throughput, and automation features. Based on the survey, respondents want to be able to set up a group of samples and walk away while the instrument does its thing. Another desirable feature is some sort of reporting and/or control function, which can be achieved by connecting analyzers to LIMS (laboratory information management systems), or for critical monitoring applications to a SCADA (supervisory control and data acquisition) or Ethernet network, whose supervisory functions will close down a plant or process when serious excursions occur.
Number of TOC analyzers currently in respondents’ labs:
Primary purpose for TOC analyzers in the lab:
Types of TOC analyzers being used in respondents’ labs:
TOC analyzer components being used in respondents’ labs:
Respondents’ preferred technology:
Respondents’ interest in using total nitrogen (TN):
Respondents’ annual consumables budgets for items such as reagents, solvents and water standards:
Respondents’ plans for purchasing a new TOC analyzer:
Primary reasons for purchasing a new TOC analyzer:
Respondents’ budget ranges for a new TOC analyzer:
Factors/features that influence the decision-making process when buying a TOC analyzer:
Respondents’ fields of work:
If you would like to participate in our laboratory equipment purchasing surveys, please visit www.labmanager.com/surveys