Laboratory Testing & General Mineral Processing Engineering

Laboratory Testing & General Mineral Processing Engineering 2017-04-04T06:57:51+00:00
  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Mineral Processing or Laboratory Work.
  • OR Select a Topic that Interests you.
  • Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
    Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
  • Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.

How to make Lead Pb standards for XRF instrument (2 replies and 1 comment)

Sandy
4 months ago
Sandy 4 months ago

Hello everyone,

I'm new in using XRF instrument and I need to invistigate any lead contamination in powdered samples  that should not exceed 10ppm of lead . However,  I need to makeup some sort of compostion as solid phase standard contains right concentration of lead. what condition is required ? any idea about to to make the right lead standard to calibrate the instrument ? some says grinding slice in lead salt or spike with dead solution !!

 

thanks in advance 

Paul Diemer
3 months ago
Paul Diemer 3 months ago
1 like by David

Hi Sandy. It has been many years since I worked with XRF Spectrometry but when I needed to make a up a standard for a specific element I would use pure ground silica powder. After presenting a pellet of the pure silica to the machine, to verify if it contained any elements that might interfere, I would mixed weighted percentages of the element in question with the silica and thus produce a range of standards to calibrate against. I don't know just what XRF machine you are using but the one I used, this was in the early 1970's, it required the powdered sample to be pressed into a pellet. Don't know if my ancient experience will help you but there it is.

Paul Diemer
3 months ago

Another way is to acquire about 15 to 20 samples of the material you are working with. Make sure they contain a, fairly wide, range of Pb content by assay, either AA or chemical procedures. Then prepare and read all these samples with your XRF equipment and compare the readings with the actual assays by application of the "Least Squares" calculations and thus establish a mathematical factor

David
3 months ago
David 3 months ago

Hi, my contacts from http://www.northernani.com/ referred my to 

https://www.nist.gov/srm and

https://www.nrcan.gc.ca/mining-materials/certified-reference-materials/7827

Use the Social Share Bar on the Left. Tell everyone you can about https://www.911metallurgist.com/metallurgy/ It's FREE & GOOD.

Please join and login to participate and leave a comment.

BUY Laboratory & Small Plant Process Equipment

We have all the laboratory and plant equipment you need to test or build/operate your plant.

ENTER our Mining Equipment' Store

We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

Have a Mineral Processing QUESTION?

Come in, ask your question

911Metallurgist Community Forums

Talk to other metallurgists and be helped.

Need ENGINEERING Services or Plant TROUBLESHOOTING?

We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

911Metallurgy Engineering

Contact us for process engineering, metallurgical investigations, plant optimization, plant troubleshooting, needs. WE “FIX” METALLURGY.