Analysis for Gold, Platinum Group Metals and Other Elements
Aqua Regia Digestion
Aqua regia will digest most rock types, however silicates and refractory minerals will remain essentially un-dissolved.
We offer two options -
Digestion B (10g charge)
Our proven technique used extensively at Genalysis for the past 25 years, for gold and base metals. The digested and leached sample is vacuum filtered and accurately diluted to volume.
| Digestion cost (10g charge - gold only required) | $3.80 sample |
| Digestion cost (10g charge - gold and other elements required) | $4.50 sample |
Digestion B25 (25g charge)
For this option the digested and leached sample is vacuum filtered and accurately diluted to volume.
| Digestion cost (25g charge – suitable for gold only) | $4.80 sample |
| Digestion cost (25g charge – gold and other elements required) | $5.50 sample |
Digestion B5 (50g charge)
This option involves arresting the digest and diluting to volume in the beaker. Any insoluble residue remains in situ. Base metals based on this technique are not as efficiently recovered and duplication is poor.
| Digestion cost (50g charge – suitable for gold only) | $6.30 sample |
| Digestion cost (50g charge – gold and other elements required) | $7.00 sample |
Digestion RB
Aqua regia digest after pre-roasting (ashing) to remove graphitic and other organic material. (NB some analytes may be lost during roasting.) 10g charge only.
| Pre-roast and Digestion cost (gold only required) | $5.80 sample |
| Pre-roast and Digestion cost (gold and other elements required) | $6.50 sample |
Samples submitted for ppb detection of gold are digested in our completely separate and dedicated laboratory away from samples submitted for ppm detection.
Elements by solvent extraction and enhanced sensitivity graphite furnace AAS [EETA]
Method code B/EETA; B25/EETA; B5/EETA; RB/EETA
| Au(0.1ppb) | $7.00 |
Elements by solvent extraction and graphite furnace AAS [ETA]
Method code B/ETA; B25/ETA; B5/ETA; RB/ETA
| Au(1ppb) | $4.50 |
Elements by solvent extraction and flame AAS [SAAS]
Method code B/SAAS; B25/SAAS; B5/SAAS; RB/SAAS
| Au(0.01) | $1.20 |
Elements by flame AAS
Method code B/AAS; B25/AAS; B5/AAS; RB/AAS
| Ag (0.1) As (10) Bi (2) Cd (0.1) Co (1) Cu (1) Mn (1) Ni (1) Pb (1) Sb (2) Te (2) Tl (2) Zn (1) | $1.20 each |
| Cr (1) Fe (0.01%) Mo (2) | $1.80 each |
| Ca (0.1%) Mg (0.1%) | $3.00 each |
Elements by OES
Method code B/OES; B25/OES; B5/OES; RB/OES
Ag (0.5) Al (20) As (2) Ba (2) Bi (10) Ca (0.01%) Cd (0.5)
Co (1) Cr (2) Cu (1) Fe (0.01%) K (20) Mg (0.01%) Mn (1)
Mo (2) Ni (1) P (20) Pb (2) Sb (10) Sc (1) Sr (1) Te (5) Ti (5) V (2) Zn (1)
| first element | $5.00 |
| subsequent elements | $0.50 each |
Elements by enhanced sensitivity OES [EOES]
Method code B/EOES; B25/EOES; B5/EOES; RB/EOES
Ag (0.1) Bi (1) Cd (0.1) Mo (1) Pb (1) Sb (1) Te (1) Tl (1) W (2)
| first element | $5.00 |
| subsequent elements | $0.70 each |
(If both "standard" and "enhanced" OES elements are reported, then the "first element" cost for the "enhanced" OES elements does not apply).
Elements by MS
Method code B/MS; B25/MS; B5/MS; RB/MS
Ag (0.01) As (0.5) Au (1ppb) Ba (1) Be (0.05) Bi (0.01) Cd (0.05)
Ce (0.01) Co (0.1) Cs (0.002) Dy (0.01) Er (0.01) Eu (0.01) Ga (0.05)
Gd (0.01) Hf (0.01) Ho (0.01) In (0.01) La (0.01) Li (0.1) Mo (0.1)
Nb (0.02) Nd (0.01) Pb (1) Pd (10ppb) Pr (0.005) Pt (5ppb) Rb (0.02)
Re (0.01) Sb (0.02) Se (1) Sm (0.01) Sn (0.05) Sr (0.02) Ta (0.01)
Tb (0.005) Te (0.05) Th (0.01) Tl (0.01) Tm (0.01) U (0.01) W (0.05)
Y (0.02) Yb (0.01) Zr (0.1)
| first element | $7.00 |
| subsequent elements | $0.70 each |
Elements by enhanced sensitivity MS [EMS]
Method code B/EMS; B25/EMS; B5/EMS; RB/EMS
As (0.1) Se (0.2)
| first element | $7.00 |
| second element | $0.70 |
Digestion FA
Lead collection fire assay using carefully selected fluxes specially formulated for the mineralogy of each sample type. Samples submitted for ppb detection of gold (and/or platinum and palladium) are fused in our dedicated low level furnace. Some reduction in charge weight may be necessary for difficult sample matrices. Prices exclude the lead waste disposal levy.
| Digestion cost (Standard Fusion – 50g charge) Method code FA50/ | $8.10 sample |
| Digestion cost (Standard Fusion – 25g charge) Method code FA25/ | $7.50 sample |
| Digestion cost (Metallurgical/Mill) Method code FA25M/ | $9.40 sample |
| Digestion cost (Concentrate) Method code FA25C/ | $11.20 sample |
| Digestion cost (Shipment Samples) Method code FA25S/ | $12.30 sample |
Elements by flame AAS
Method code FA/AAS
| Au (0.01) | $1.20 |
Elements by solvent extraction & flame AAS [SAAS]
Method code FA/SAAS
| Au (1ppb) | $3.60 |
Elements by MS
Method code FA/MS
Au (1ppb) Pd (1ppb) Pt (1ppb)
| first element | $7.00 |
| subsequent elements | $0.70 each |
| Waste Disposal Levy (not subject to any discount) | $0.50 sample |
Digestion NiS
Nickel sulfide collection fire assay is formulated for the total recovery of all the platinum group elements. Some reduction in charge weight may be necessary for difficult sample matrices
| Digestion cost (25g charge) | $52.00 sample |
Elements by MS
Method code NIS/MS
Au (5ppb) Ir (2ppb) Os (2ppb) Pd (2ppb) Pt (2ppb) Rh (2ppb) Ru (2ppb)
| first element | $11.00 |
| subsequent elements | $2.00 each |
| Waste Disposal Levy (not subject to any discount) | $0.50 sample |
Screen Fire Assays
A specified weight (usually 500g to 1kg) is split from the bulk pulp which is then re-pulverised to (hopefully) ensure oversize portion is not excessive. This sub-sample is then sieved wet or dry through a specified mesh size nylon cloth. The coarse fraction is weighed and the total coarse fraction including nylon cloth is fired in a new pot and the micrograms of gold determined. The fines are homogenised and duplicate portions fire assayed and the gold determined in ppm. The "true" or "weighted mean" result is then calculated.
| Special pre-preparation of samples prior to screen fire assay | $5.00 sample |
| The most common option is for 1kg sample, dry sieved through 150 micron cloth, and duplicate 25g fire assays of the fines. | $50.00 sample |
| Another option is for 1kg sample, dry sieved through 100 micron cloth, and duplicate 25g fire assays of the fines. | $60.00 sample |
| Alternatively, 1kg sample, dry sieved through 75 micron cloth, and duplicate 25g fire assays of the fines. | $100.00 sample |
| The above prices allow for a single pot fire of oversize. Additional oversize firing. | $12.10 sample |
| Other options | price on application |
| Also applicable to silver and platinum/palladium | price on application. |
| Waste Disposal Levy (not subject to any discount) | $1.50 sample |
LeachWELL™ Accelerated Cyanide Leach
4 hour leach using 10g LeachWELL™ tablet. Not practicable for clay rich samples.
| 200g leach | $7.80 sample |
| 400g leach | $8.80 sample |
| 1000g leach (two tabs) | $13.80 sample |
Elements by Solvent Extraction & flame AAS [SAAS]
Method code LW200/SAAS; LW400/SAAS; LW1000/SAAS
| Au (0.01) | $1.20 |
Elements by flame AAS
Method code LW200/AAS; LW400/AAS; LW1000/AAS
| Ag (1) | $1.20 |
| Filtration to recover clear liquor for analysis (if required) | $6.00 sample |
Tail recovery, entire tail washed, reground and 25g Fire Assay
| LW200 | $22.00 sample |
| LW400 | $22.00 sample |
| LW1000' | $25.00 sample |
Waste Disposal Levy (not subject to any discount)
| LW200 | $0.50 sample |
| LW400 | $1.00 sample |
| LW1000 | $2.00 sample |
Bulk Cyanide Leach - Low Level Gold (BLEG)
24 hour tumble leach at standard conditions formulated for oxidised surface samples containing little organic matter. Usually performed on minus 2mm unprepared sample.
| 0.1kg leach | $6.50 sample |
| 0.5kg leach | $8.80 sample |
| 1.0kg leach | $10.80 sample |
| 2.0kg leach | $12.80 sample |
| 4.0kg leach | $17.80 sample |
Elements by MS
Method codeCN.1/MS; CN.5/MS; CN1/MS; CN2/MS; CN4/MS
Ag (0.1ppb) As (0.02) Au (0.01ppb) Bi (0.1 ppb) Cd (0.1ppb) Co (0.001) Cu (0.01)
Hg (0.5ppb) Mo (0.1ppb) Ni (0.01) Pd (0.1ppb) Pt (0.1ppb) Zn (0.05)
| first element | $7.00 |
| subsequent elements | $0.70 each |
| Hg as a subsequent element | $1.50 |
| Waste Disposal Levy (not subject to any discount) | $0.50 sample |
