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LC-MS

Frequently Referenced FAQ

Latest FAQ

FAQ within [ LC-MS ]

101-110 of Total 133

≪ 11 / 14page ≫

  • How to check for ESI Probe position problems (LCMS)

    For some compounds, probe position may give a great influence to sensitivity. If the probe position is out of place, sensitivity fluctuation may become large... Show Detail

  • Interpreting tuning results (LCMS)

    A detector voltage of about -1.6 to -3.0 kV is normal. The detector deteriorates and the detector voltage increases at a rate that depends on its conditions... Show Detail

    • No：3299
    • Date of Issue：2020/11/18 15:33
    • Category： Setting
    • Brached FAQ

  • Auto Tuning (LCMS)

    Carry out auto tuning using the ESI unit/IonFocus Unit to perform sensitivity adjustment, resolution adjustment, and mass calibration of the instrument. Per... Show Detail

    • No：3294
    • Date of Issue：2020/11/18 15:33
    • Category： Maintenance
    • Brached FAQ

  • Manual Tuning (LCMS)

    In manual tuning, the instrument can be adjusted manually while monitoring peaks. If peaks cannot be checked while using manual tuning, execute auto tuning i... Show Detail

    • No：3293
    • Date of Issue：2020/11/18 15:33
    • Category： Maintenance
    • Brached FAQ

  • Replacing the Waste Tubes (LCMS)

    Waste tubes are fitted at the locations indicated below. If these tubes are particularly soiled, or are damaged, replace them. NOTE: Replace the waste tu... Show Detail

    • No：3291
    • Date of Issue：2020/11/17 12:52
    • Last Updated：2022/06/17 12:42
    • Category： Maintenance

  • Vacuum Leak Check (LCMS)

    Running the instrument while there is a vacuum leak will lead to problems such as reduced sensitivity, increased noise, and breakage of the ion gauge (vacuum... Show Detail

    • No：3290
    • Date of Issue：2020/11/17 12:48
    • Last Updated：2022/06/22 13:00
    • Category： Maintenance

  • Maintenance of the Rotary Pump (LCMS)

    1. Stop the instrument. 2. Wait about 10 minutes after stopping it. 3. Turn the power OFF at the distribution board to which the rotary pump power cable(1)... Show Detail

    • No：3289
    • Date of Issue：2020/11/17 09:50
    • Last Updated：2022/06/20 13:29
    • Category： Maintenance
    • Brached FAQ

  • Cleaning and Replacing the Orifice (LCMS)

    1. Stop the vacuum. 2.Remove the DL. 3. Remove the orifice ASSY. a)Loosen the single screw(1). b)Turn the notched section(2) in the direction indicated... Show Detail

    • No：3288
    • Date of Issue：2020/11/16 15:42
    • Last Updated：2022/06/22 10:56
    • Category： Maintenance
    • Brached FAQ

  • Replacing the DL (LCMS)

    1. Unlock and remove the ionization unit(1). If using APCI or DUIS, remove the needle unit too. 2. Loosen the two screws(2) with the hexagon wrench prov... Show Detail

    • No：3285
    • Date of Issue：2020/11/16 15:20
    • Category： Maintenance
    • Brached FAQ

  • Cleaning the Spray Unit (LCMS)

    1. Remove the ionization unit. With APCI or DUIS, remove the needle unit. WARNING: Take care because the tip of the needle unit is sharp. The inside of... Show Detail

    • No：3284
    • Date of Issue：2020/11/16 15:05
    • Last Updated：2022/06/23 11:11
    • Category： Maintenance
    • Brached FAQ

101-110 of Total 133

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