Page 10 - Shimadzu GCMS-TQ8050 NX
P. 10

Wide Variety of Optional Products for

            Supporting Trace Analysis



               Chemical Ionization and Negative Chemical Ionization                                                                      AOC-6000 Multifunctional Autosampler
            In addition to commonly-used electron ionization (EI), both chemical ionization (CI) and negative chemical ionization (NCI) are   The AOC-6000 supports three sample injection methods: liquid
            available for the GCMS-TQ8050 NX. The CI mode is a “soft ionization” technique, used to detect many compounds not possible by EI,   sample injection, headspace (HS) injection, and solid phase micro
            and is suited for confirmation of molecular weight. The NCI mode can be used to detect functional groups having a high electron   extraction (SPME) injection, so samples in a variety of forms can be
            affinity such as halogens. Any of three types of reagent gases (methane, isobutane, or ammonia) can be used.              analyzed. It allows the sample injection method to be switched                        SPME Injection
                                                                                                                                      automatically, enabling different sample injection methods to be
                                      Methyl erucate; C22:1 n-9                                                                       combined in a continuous operation.
                          EI-GC-MS                                                                                                    With the automatic syringe exchange and stirring function, standard
                          %                                                C22:1 n-9
                                                                                                                                      samples can be prepared automatically with a variety of dilution
                                                                                                320.30
                           55.0                                                                                                       levels, and everything from the creation of calibration curves to the
                      100                                                                       264.00
                                                                                                                                      quantitative determination of unknown samples can be fully
                       75      83.0                                                                                                   automated.                                                                           2-Methylisoborneol
                                                           320.3                                                                                                                                                          (Concentration: 1 ng/L)
                       50
                                  111.1
                       25              152.2     236.2                                     C20:3 n-3
                                                     264.3     352.3
                        0                                                                                                                HS-20 Headspace Sampler
                                 100         200         300         400
                                                                                                                                      The HS-20 headspace sampler provides strong backup for the
                          PCI-GC-MS/MS                    Precursor m/z 321.3                                                         analysis of volatile components at every stage from research to
                                                          CE:9V                                                                       quality control departments. The high-sensitivity electronic cooling
                          %
                                                                                                                                      trap enables quantitative and qualitative determination of trace
                                                           321.3               321.30>289.30
                      100                                                                                                             components that cannot be detected with a conventional headspace
                                                                               321.30>271.30
                                                                                           C20:3 n-3                                  sampler.
                       75
                                                                                                                                      The HS-20 transfer line is built into the GC unit, which makes it easy
                       50                                                                                                             to combine the HS-20 with the AOC-20 liquid sample injector, as
                               81.2                                                                                                   well as to switch between these units.
                       25                                303.3
                                                   247.3
                        0
                                 100         200         300          400
                                                                                                                                         OPTIC-4 Multimode Sample Inlet
                                                                                                                                      The OPTIC-4 multimode sample inlet is a GC injection port that
            A type of female hormone, estrogen persists in the environment at low concentrations as an endocrine disruptor, which requires high   enables a variety of sample injection modes for GC-MS, including
            sensitivity for analysis.                                                                                                 large-quantity injection, inlet derivatization, thermal desorption, and
            To analyze estrogen, it is first derivatized and then a GC/NCI-MS system is used to selectively analyze compounds with high electron   DMI (difficult matrix introduction).
            affinity.                                                                                                                 Combining this with an autosampler enables automatic replacement
            The GCMS-TQ8050 NX proves its worth in ultra-trace analysis using not only EI, but CI and NCI ionization methods as well. In   of inserts, improving productivity in multisample analyses.
            particular, the GCMS-TQ8050 NX can analyze femtogram-level concentrations of estradiol, which is one type of estrogen, with high
            sensitivity and accuracy using NCI. Therefore, it eliminates the previously required step of first concentrating samples.

                                                                      Area
                                                                 900000                                                                  TD-30 Thermal Desorption System
                                                                 800000
                    343.20 > 253.20                                                                                                   Thermal desorption systems heat samples in a sample tube and then
                    N = 8                                        700000                                                               concentrate the thermally desorbed gases before injection into a
                    %RSD = 7.4%
                                                                 600000                                                               GC-MS system. They are commonly used to measure volatile organic
                                                                                                                                      compounds (VOCs) in the atmosphere or measure trace components
                                                                 500000
                                                                                                                                      that are generated from plastic or other samples.
                                                                 400000
                                                                                                                                      The TD-30R can accommodate 120 samples for excellent processing
                                                                 300000
                                                                                                                                      capacity and offers outstanding expandability, such as functionality
                                                                 200000                                                               for retrapping components or for automatically adding an internal
                                                                 100000                                                               standard substance.
                                                                    0
                       14.1  14.2  14.3  14.4  14.5  14.6            0     100    200    300   400  Concentration
                         Mass chromatogram of α-Estradiol                 Calibration curve from 5 to 500 fg/µL
                         (5 fg/µL concentration, MRM mode)                          R  ≥ 0.999
                                                                                     2


     18                                                                                                                                                                                                                 Gas Chromatograph Mass Spectrometer  19
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