Mass spectrometers
Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: > Other instruments and apparatus: > Mass spectrometers
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9027.81.00.00
Thermo Scientific Orbitrap Eclipse Mass Spectrometer
High-resolution hybrid quadrupole-orbitrap mass spectrometer designed for proteomics and metabolomics research. It analyzes mass-to-charge ratios of ions to identify and quantify molecules in complex samples. Classified under HTS 9027.81.00.00 as a mass spectrometer for physical/chemical analysis.
Agilent 6545 Q-TOF LC/MS System
Quadrupole time-of-flight liquid chromatography-mass spectrometer for trace-level contaminant detection in pharmaceuticals. Provides exact mass measurements for structural elucidation of unknown compounds. Falls under HTS 9027.81.00.00 as a specialized mass spectrometer.
Waters Xevo G2-XS QTof Mass Spectrometer
Compact quadrupole time-of-flight MS for high-throughput screening in drug discovery. Features StepWave ion optics for enhanced sensitivity. HTS 9027.81.00.00 classification for mass spectrometry apparatus.
Bruker maXis II UHR-TOF Mass Spectrometer
Ultra-high resolution time-of-flight MS (R>40000) for intact protein analysis. Utilizes ESI/APCI sources for biomolecular characterization. Classified as mass spectrometer under HTS 9027.81.00.00.
SCIEX TripleTOF 6600 Mass Spectrometer
Triple quadrupole time-of-flight system with QJet ion guide for SWATH acquisition in proteomics. Offers 100Hz acquisition speed for DIA workflows. HTS 9027.81.00.00 for mass spectrometers.
Shimadzu LCMS-9050 Q-TOF Mass Spectrometer
High-speed quadrupole time-of-flight LC/MS with 30,000 FWHM resolution for metabolomics. Features UFplus ion optics for matrix-tolerant analysis. Mass spectrometer HTS 9027.81.00.00.
PerkinElmer QSight 220 Triple Quadrupole MS
Triple quadrupole mass spectrometer for pesticide residue analysis in food safety testing. Dual ion source (ESI/APCI) for multi-residue methods. Classified under HTS 9027.81.00.00.
Jeol JMS-T100LP AccuTOF LC Plus
Atmospheric pressure ionization time-of-flight MS for metabolomics screening. Provides exact mass with 5000 FWHM resolution. HTS 9027.81.00.00 mass spectrometer classification.
Thermo Q Exactive Focus Orbitrap MS
Benchtop hybrid quadrupole-orbitrap for targeted quantitation workflows. 70,000 FWHM resolution for small molecule analysis. Mass spectrometer under HTS 9027.81.00.00.
AB Sciex API 4000 Triple Quadrupole MS
Triple quadrupole LC/MS/MS system for ADME/PK studies in drug development. Turbo V ion source for rugged operation. HTS 9027.81.00.00 classification.