Page 10 - Solutions for Industrial Process Water
P. 10

Volatile and Semi-volatile Organic


            Compounds





            Volatile and semi-volatile organic compounds (VOCs and SVOCs) can be incorporated into industrial water streams.
            Many VOCs and SVOCs demonstrate negative health effects and are major components of air pollution, particularly
            around industrial facilities. Gas chromatography with mass spectrometry (GC-MS) is a powerful tool that enables fast,
            targeted analyses for VOCs and SVOCs in water and air, for example, analysis of purgeable organic compounds using
            EPA Method 624.


            Shimadzu offers a comprehensive EPA Method 624/8260 package that includes standards, columns, sample vials
            and other consumable items, method conditions, and documentation to achieve and maintain the quality assurance
            criteria outlined in EPA method 624 and 8260.

               Gas Chromatograph-Mass Spectrometer
               GCMS-QP2020 NX

            The GCMS-QP2020 NX is Shimadzu’s versatile single-quadrupole
            GCMS, capable of reliable, routine analysis of water samples.

            •   High-performance ion source and ion optics for maximum
                sensitivity and ion transport
            •   High-efficiency turbomolecular pump to exhaust any carrier
                gas, including helium, hydrogen, nitrogen, and argon
            •   Scan speeds of up to 20,000 µ/sec across all masses using
                patented Advance Scanning Speed Protocol™ functionality






               (x1,000,000)
               TIC (1.00)
            1.50                                                             Surrogate Standard Recoveries Over 12 Hours
                                                                          1.4
            1.25
                                                                          1.3
            1.00                                                          1.2                             120%
                                                                         Surrogate Recovery  1
            0.75                                                          1.1
            0.50
            0.25                                                          0.9
               1.0   2.0   3.0   4.0   5.0   6.0   7.0   8.0   9.0   10.0  11.0   12.0   13.0   14.0  15.0   16.0   17.0  0.8
                                                                                                            80%
            Total Ion Chromatogram (TIC) for 50 µg/L compounds for EPA    0.7
            Method 624.1.                                                 0.6
                                                                            0      5      10     15     20     25
                                                                                           Run Number
                                                                             Pentafluorobenzene  Fluorobenzene  4-Bromofluorobenzene


                                                                       Surrogate standard recoveries for EPA Method 624 over a
                                                                       12 hour period.






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