Skip to content

JASCO JASCO

  • News
  • Events
  • E-Store
  • My Account
  • Contact Us
  • Worldwide
Search
Click to view menu
MENUMENU
  • Products
    • Chromatography
      • HPLC
      • RHPLC
      • UHPLC
      • LC-MS
      • Preparative LC
      • Analytical SFC
      • Semi-Preparative SFC
      • Hybrid SFC
      • Fuel Analysis by SFC-FID
      • Preparative SFC
      • Supercritical Fluid Extraction
      • Chromatography Software
    • Molecular Spectroscopy
      • Circular Dichroism
      • High-Throughput CD
      • Vibrational CD
      • Circularly Polarized Luminescence (CPL)
      • Polarimeters
      • FTIR Spectrometers
      • FTIR Microscopy
      • FTIR Portable
      • Raman Microscopy
      • Palmtop Raman Spectrometer
      • Probe Raman
      • UV-Visible/NIR Spectrophotometers
      • UV-Visible/NIR Microscopy
      • Fluorescence Spectrophotometers
      • Film Thickness
      • Spectra Manager™ Suite
    • Refurbished
      • Refurbished HPLC Systems
      • HPLC Switching Valves
      • NRS-4100 Confocal Raman Microscopes
      • FTIR Accessories
  • Service
    • Service and Support Plans
    • Service Request Form
  • Applications
  • KnowledgeBase
  • Learning Center
    • Best Practices
      • Circular Dichroism Tips & Tricks for Biological Samples
      • CD Scale Calibration with ACS
      • Fluorescence Tips & Tricks
      • Raman Spectroscopy Tips & Tricks
    • Training Videos
      • ChromNAV
      • SF-NAV
      • Circular Dichroism
      • UV-Visible/NIR
      • Fluorescence
    • Training Seminars
      • Registration Form
    • Webinars
    • eBooks
    • Theory
      • Theory of Molecular Spectroscopy
      • Chromatography
  • About Us
    • President’s Message
    • Contact
    • History
    • Careers
  • News
  • Events
  • Worldwide
  • Shop
  • My Account

Home / Applications / High Speed Separation of Polycyclic Aromatic Hydrocarbons by X-LC

  • Industry

  • Technique

High Speed Separation of Polycyclic Aromatic Hydrocarbons by X-LC

By Toshifumi Uchiyama

image_pdfView and Download PDF
August 25, 2022

Introduction

Polycyclic aromatic hydrocarbons (PAHs), which consist of fused aromatic rings, are produced by incomplete combustion of carbon-containing fuels such as diesel and coal. Some of them are suspected to be carcinogens, requiring the analysis of environmental PAHs. In this paper, we examine the utility of the JASCO X-LC system for the separation and determination of PAHs.

Experimental

Jasco X-LC for high speed PAHs separation

The UHPLC system utilized in this experiment was a JASCO X-LC system consisting of two PU-3185 pumps, a DG-3080 mobile phase degasser, a MX-3080 mixing unit, a CO-3067 column oven, an FP-3120 fluorescence detector, an AS-3059 autosampler, and the ChromNAV chromatography data system. The column used is a Zorbax Eclipse PAH (2.1 mm ID x 50 mmL, 1.8 µm). PAHs from the residue in a diesel engine was extracted for 8 hours using a soxhlet apparatus with dichloromethane as the extraction solvent.

Results

Figure 1 is an X-LC chromatogram of a standard mixture of 15 components of PAHs (200 pg each). The chromatograms were obtained using gradient elution and a time program of excitation and emission wavelengths for the fluorescence detector. The X-LC system provides an analysis time 3X shorter than a conventional HPLC separation. Figure 2 outlines an X-LC chromatogram obtained from the diesel engine residue with eight components separated with satisfactory resolution.

Figure 2. X-LC chromatogram of diesel engine residue
PAHs were extracted using a soxhlet apparatus as outlined within the text.
The chromatographic/detection conditions are the same as used in Figure 1.
Figure 1. X-LC chromatogram of a standard mixture of PAHs
Peak: 1 = Naphthalene, 2 = Acenaphthene, 3 = Fluorene, 4 = Phenanthrene, 5 = Anthracene, 6 = Fluoranthene, 7 = Pyrene, 8 = Benzo(a)anthracene, 9 = Chrysene, 10 = Benzo(b)fluoranthene, 11 = Benzo(k)fluoranthene, 12 = Benzo(a)pyrene, 13 = Dibenzo(a,h)anthracene, 14 = Benzo(g,h,i)perylene, 15 = Indeno(1,2,3-c,d)pyrene (200 pg each). Chromatographic conditions: column = Zorbax Eclipse PAH(2.1 mmID. x 50 mmL., 1.8 µm); mobile phase = A(water), B(acetonitrile): A/B(60/40, 0 min); A/B(32/68, 3.5 min); A/B(0/100, 6 min); A/B(0/100, 8.2 min); A/B(60/40, 8.3 min); flow rate = 0.6 mL/min; column temperature = 30°C, wavelength = Ex/Em: (280 nm / 330 nm, 0 min); (260 nm / 340 nm, 2.65min); (250 nm / 420 nm, 3.55 min); (270 nm / 400 nm, 4.6 min); (295 nm / 410 nm, 5.9 min); (290 nm / 500 nm, 6.8 min); injection volume = 1 µL.
image_pdfView and Download PDF

Featured Products:

  • HPLC Systems

    UHPLC

  • MD-4010 PDA

    UV-Visible HPLC Detectors

  • HPLC Column Ovens

    Column Ovens

About the Author

Toshifumi Uchiyama is a member of the electronic spectroscopy team located at the JASCO main laboratory in Tokyo

JASCO provides services and support to a diverse range of industries throughout the world.

View our support plans

Connect with JASCO

  • Facebook
  • Twitter
  • LinkedIn
  • JASCO Sales
  • 800-333-5272

Receive the latest promotions and special offers

  • Careers
  • Press Kit
  • Privacy Policy
  • Sitemap

© , JASCO. All Rights Reserved.