SELL YOUR PRODUCTS
*mymedicalexpo  
English
  1. Products
  2. Laboratory tester
  3. Shimadzu Europa Analytical Instruments

TOC analyzer TOC-VWP, TOC-VWS
laboratory

TOC analyzer
TOC analyzer
TOC analyzer
Add to favorites
Compare this product

Characteristics

Tested parameter
TOC
Applications
laboratory

Description

Newly designed high-sensitivity NDIR achieves ultrahigh sensitivity measurements. Sensitivity and accuracy enhanced by minimizing the reagent blanks that hinder accurate analysis. Powerful oxidation through a combination of peroxosulfuric acid, UV illumination, and heating. No need of purging of reagent bottle reduces consumption of carrier gas Measurement Principle TC Measurement Phosphoric acid and the oxidant (persulfate) are added to the sample, which is heated under UV illumination to convert the TC in the sample to carbon dioxide. This carbon dioxide flows with the carrier gas via the dehumidifier into the NDIR sample cell. The area of the carbon dioxide peak signal is measured and this peak area is converted to TC concentration using a pre-prepared calibration curve. IC Measurement The sample is acidified with phosphoric acid and sparged to convert the IC in the sample to carbon dioxide. This carbon dioxide is detected by the NDIR and the sample IC concentration is measured in the same way as TC. TOC Measurement Subtracting the IC concentration from the TC concentration determines the TOC concentration. NPOC Measurement The sample is acidified with phosphoric acid and sparged to eliminate the IC. The NPOC concentration is determined by measuring the TC (=NPOC) of the sample after the IC is eliminated, using the same method as for TC measurement.

Catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.