Splash Screen

Please choose de default site

Email this pageEmail this pagePrint this pagePrint this page
Share on LinkedInShare on LinkedInShare on FacebookShare on FacebookTweet thisTweet this
Contact

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

Mining

Categories

Minimize menuMaximize menu

Minimize menuMaximize menuHomeMiningAnalytical ServicesGeochemistryDigestion & FusionTwo-Acid Digest & Aqua Regia Digest

Related Services & Resources

Two-Acid Digest and Aqua Regia Digest

Through our global network of laboratories, SGS delivers a broad spectrum of geochemical analysis including two-acid, aqua regia and reverse aqua regia digests. Both two-acid digestions and aqua regia digestions are done, using combinations of HNO3 and HCl.

After sample digestion, the solution is analyzed by either inductively coupled plasma-atomic emission spectrometry (ICP-AES), inductively coupled plasma-mass spectrometry (ICP-MS) or atomic absorption spectrometry (AAS). These solutions can also be analyzed by hydride atomic absorption spectrometry (AAS) to determine the volatile elements (Sb, As, Bi, Se and Te). Our experts will help you select a method that is fit-for-purpose.

Two-acid digests are the weakest of the digestions and will not attack silicate minerals. As such, the two acid leach can only be expected to provide partial results for most elements.

The methods listed below with the designation “12” are based on a combination of 2:1 HNO3 : HCl. This digest is recommended for samples with organic or high sulfide content.

The methods listed below with the designation “14” are based on a combination of 3:1 HCl : HNO3. This digestion is also known as an aqua regia digest and is recommended for all samples that contain no organic material and are low in sulfide content.

The elemental suite and detection limits are identical in the “12” and “14” digests.

ICP12B and ICP14B - 34 Elements by 2:1 HNO3:HCl / ICP-AES Finish

LIMITSLIMITSLIMITS
Ag 2ppm - 10ppm Hg 1ppm - 1% Sb 5ppm - 1%
Al 0.01% - 15% K 0.01% - 15% Sc 0.5ppm - 1%
As 3ppm - 1% La 0.5ppm - 1% Sn 10ppm - 1%
Ba 5ppm - 1% Li 1ppm - 1% Sr 0.5ppm - 1%
Be 0.5ppm - 0.25% Mg 0.01% - 15% Ti 0.01% - 15%
Bi 5ppm - 1% Mn 2ppm - 1% V 1ppm - 1%
Ca 0.01% - 15% Mo 1ppm - 1% W 10ppm - 1%
Cd 1ppm - 1% Na 0.01% - 15% Y 0.5ppm - 1%
Cr 1ppm - 1% Ni 1ppm - 1% Zn 1ppm - 1%
Co 1ppm - 1% P 0.01% - 15% Zr 0.5ppm - 1%
Cu 0.5ppm - 1% Pb 2ppm - 1%
Fe 0.01% - 15% S 0.01% - 5%

IMS12B and IMS14B - 36 Elements by 2:1 HNO3:HCl / ICP-MS Finish

LIMITSLIMITSLIMITS
Ag 0.01ppm - 10ppm Ga 0.1ppm - 1% Sb 0.05ppm - 1%
Al 0.01% - 10% Hg 0.01ppm - 100ppm Sc 0.1ppm - 1%
As 1ppm - 1% K 0.01% - 10% Sn 0.3ppm - 0.1%
Ba 5ppm - 1% La 0.1ppm - 1% Sr 0.5ppm - 1%
Bi 0.02ppm - 1% Mg 0.01% - 15% Th 0.1ppm - 1%
Ca 0.01% - 15% Mn 2ppm - 1% Ti 0.01% - 10%
Cd 0.01ppm - 1% Mo 0.05ppm - 1% Tl 0.02ppm - 1%
Ce 0.05ppm - 0.1% Na 0.01% - 10% U 0.05ppm - 1%
Co 0.1ppm - 1% Ni 0.5ppm - 1% V 1ppm - 1%
Cr 1ppm - 1% P 50ppm - 1% W 0.1ppm - 1%
Cu 0.5ppm - 1% Pb 0.2ppm - 1% Y 0.05ppm - 1%
Fe 0.01% - 15% Rb 0.2ppm - 1% Zn 1ppm - 1%

The following elements can be added to above package:
Dy, Er, Eu, Gd, Nd, Pr, Re, Sm, Yb

ICM12B and ICM14B - 34 Elements by 2:1 HNO3:HCl / ICP-AES Finish

LIMITSLIMITSLIMITS
Ag 0.01ppm - 10ppm Hg 0.01ppm - 1% Se 1ppm - 0.1%
Al 0.01% - 15% In 0.02ppm - 0.05% Sn 0.3ppm - 0.1%
As 1ppm - 1% K 0.01% - 25% Sr 0.5ppm - 1%
B 10ppm - 1% La 0.1ppm - 1% Ta 0.05ppm - 1%
Ba 5ppm - 1% Li 1ppm - 5% Tb 0.02ppm - 1%
Be 0.1ppm - 0.01% Lu 0.01ppm - 0.1% Te 0.05ppm - 0.1%
Bi 0.02ppm - 1% Mg 0.01% - 15% Th 0.1ppm - 1%
Ca 0.01% - 15% Mn 2ppm - 1% Ti 0.01% - 15%
Cd 0.01ppm - 1% Mo 0.05ppm - 1% TI 0.02ppm - 1%
Ce 0.05ppm - 0.1% Na 0.01% - 15% U 0.05ppm - 1%
Co 0.1ppm - 1% Nb 0.05ppm - 0.1% V 1ppm - 1%
Cr 1ppm - 1% Ni 0.5ppm - 1% W 0.1ppm - 1%
Cs 0.05ppm - 0.1% P 50ppm - 1% Y 0.05ppm - 1%
Cu 0.5ppm - 1% Pb 0.2ppm - 1% Yb 0.1ppm - 0.01%
Fe 0.01% - 15% Rb 0.2ppm - 1% Zn 1ppm - 1%
Ga 0.1ppm - 1% S 0.01% - 5% Zr 0.5ppm - 1%
Ge 0.1ppm - 1% Sb 0.05ppm - 1%
Hf 0.05ppm - 0.05% Sc 0.1ppm - 1%

The following elements can be added to above package:
Dy, Er, Eu, Gd, Nd, Pr, Re, Sm

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

LIMITS
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

Partner with SGS and have confidence in your analytical results.

Email Us
Geochem Analysis GuideGeochem Analysis GuideA Guide to Geochemical Analysis Services at SGS ...

close

Now Viewing

All 1 resources

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

E-SUBSCRIPTIONS

Sign up to SGS publications and newsletters from your region and around the world
STAY UP TO DATE.SUBSCRIBE NOW

Office Directory

Find SGS offices and labs around the world.World map
Office Locator

Contact

News

Events

  • JUN
    13

    Global Offshore Wind - Renewable UK 2012
    On June 13-14, 2012, SGS will be attending the 11th RenewableUK Global Offshore Wind 2012 Conference and Exhibition in London, UK. At stand 545, SGS’s team of experts will demonstrate a wide portfolio of renewable energy services for the entire project life cycle including, but not limited to, commissioning, in-service and end of warranty inspections, quality, health, safety and environmental (QHSE) management, risk management, non-destructive testing (NDT) as well as wind turbine blade testing.

  • JUN
    14

    SGS Webinar – New EU Toy Directive: Are You Up-To-Date?
    The objective of this 1-hour complimentary webinar is to give you an overview of the major changes of the new EU Toy Directive 2009/48/EC. We will provide a step-by-step implementation program to help you ensure compliance with all the new requirements.
  • View all events