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Analytical & Advisory Services Division

Trace Elements Section

[ About the Section | Responsibilities | Key Personnel |
  Quality Assurance | Key Instruments | Targets and Key Indicators ]
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About the Section

The Trace Elements Section was established on 2 July 2003 to centralise all human and physical resources for the determinations of trace elements within the Headquarters of the Government Laboratory. The Section mainly provides analytical support to Environmental Chemistry Sections and Food Safety Sections for elemental analysis.


Responsibilities

The Section performs elemental determinations on environmental monitoring programmes, environmental litigations and food contaminations on behalf of the aforesaid Sections within the Headquarters of the Government Laboratory.


Key Personnel

Senior Chemist: Dr. T C Cheung
(Tel. No.: 2762-3748 E-mail : [email protected])

Chemist
(E-mail address)
Tel. No.
Dr. H S Chu, Chemist
([email protected])
2762-3861
Dr. Y T Tsoi, Chemist
([email protected])
2762-3861
Dr. Kenny K C Wong, Chemist
([email protected])
2762-3861


Quality Assurance

About 20% of samples are for quality control purpose.

The Section participates on a regular basis in the following inter-laboratory comparison exercises:

  • Wageningen Evaluating Programs for Analytical Laboratories
    • International Plant-Analytical Exchange (IPE)
    • International Soil-Analytical Exchange (ISE)
    • International Sediment Exchange for Tests on Organic Contaminants (SETOC)
  • Environmental Resource Associates (ERA) Proficiency Testing Study
  • Quasimeme Laboratory Performance Studies
  • World Meteorological Organisation—Global Atmosphere Watch (WMO-GAW)
  • United Kingdom National External Quality Assessment Scheme (NEQAS)
  • Food Analysis Performance Assessment Scheme (FAPAS)

Key Instruments

Inductively coupled plasma — quadruple mass
Inductively coupled plasma — quadrupole mass
spectrometer

The following instruments are used routinely by the Section:

  • Inductively coupled plasma — quadrupole mass spectrometer
  • Inductively coupled plasma — quadrupole mass spectrometers with various hyphenated techniques:
    • Gas chromatography
    • High performance liquid chromatography
    • Laser ablation
  • High resolution inductively coupled plasma mass spectrometer
  • Inductively coupled plasma optical emission spectrometer
  • Atomic absorption spectrometers with various atomisation techniques:
    • Cold vapour atomic absorption spectrometer
    • Flame atomic absorption spectrometer
    • Graphite furnace atomic absorption spectrometer
Inductively coupled plasma optical emission spectrometer
Inductively coupled plasma optical emission
spectrometer
High resolution inductively coupled plasma mass spectrometer
High resolution inductively coupled plasma mass
spectrometer


Targets and Key Indicators

Please refer to the relevant Environmental Chemistry Sections and Food Safety Sections for details.