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Hydride Elements

Hydride elements (As, Bi, Se, Sb, Tl, Hg) can be “pathfinder elements”, or elements closely associated with a metal of interest, usually gold. For example, high levels of arsenic or mercury can indicate that gold mineralization is close by.

Hydride elements are chemically difficult to analyze. They volatilize easily and turn to a gas readily. Thus, when samples are heated during digestion, these elements are often lost.

To address this problem, hydride elements are analyzed using special preparation or instrumentation techniques. SGS has the expertise to provide you with a range of methods for hydride element determination, depending on your needs.

Our specific hydride packages are specially formulated to provide reproducible, precise and accurate results.

Two Acid Digest

HAS12B and HAS14B - Hydride Elements 2:1 HNO3:HCI / Hydride AAS Finish

ElementLimits
Antimony Sb 0.1ppm – 500ppm
Arsenic As 0.1ppm – 500ppm
Bismuth Bi 0.1ppm – 500ppm
Selenium Se 0.1ppm – 500ppm
Tellurium Te 0.1ppm – 500ppm

Multi-Acid (4 Acid) Digestions

HAS40B - Hydride Elements by Four-Acid Digestion / Hydride AAS Finish

ElementLimits
Selenium Se 0.2ppm – 1000ppm
Tellurium Te 0.5ppm – 1000ppm

Fusion Packages

HAS90A - Hydride Elements by Sodium Peroxide Fusion / Hydride AAS Finish

ElementLimits
Arsenic As 0.5ppm – 1000ppm
Bismuth Bi 0.5ppm – 1000ppm
Antimony Sb 0.5ppm – 1000ppm

Many of our other packages include hydride elements but the results may be of lower quality.

ICP80T - Water Analysis by ICP-AES

2 Acid / Aqua RegiaMulti-Acid (4Acid)Sodium Peroxide FusionMMI
Arsenic ICP12B, ICP14B, IMS12B, IMS14B, ICM12B, ICM14B ICP40B, ICM40B, AAS42S, ICP42S, AAS43B ICP90A, ICM90A MMI-M, MMI-ME
Bismuth ICP12B, ICP14B, IMS12B, IMS14B, ICM12B, ICM14B ICP40B, ICM40B, AAS42S, ICP42S, AAS43B ICM90A MMI-M, MMI-ME
Mercury ICP12B, ICP14B, IMS12B, IMS14B, ICM12B, ICM14B MMI-M, MMI-ME
Antimony ICP12B, ICP14B, IMS12B, IMS14B, ICM12B, ICM14B ICP40B, ICM40B, AAS42S, ICP42S, AAS43B ICP90A, ICM90A MMI-M, MMI-ME
Selenium ICM12B, ICM14B ICM40B MMI-ME
Tellurium ICM12B, ICM14B ICM40B MMI-M, MMI-ME
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Contact

SGS S.A.

  • 1 place des Alpes
  • P.O. Box 2152
  • 1211   Geneva 1
  • Switzerland
  • t   +41 22 739 91 11
  • f   +41 22 739 98 86
  • e   Email Us

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