CRM Solutions

Dave Coler

Dave Coler
General Manager at LGC ARMI

Recent Posts

2018 ARMI Catalog

[fa icon="calendar'] May 10, 2018 6:50:37 PM / by Dave Coler posted in Certified Reference Materials

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 I am happy to announce the release of our 2018 catalog.  In the past year we have added over 90 new products to our portfolio of certified reference materials as well as increased our line of sample preparation equipment for XRF, OE and ICP.

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New ARMI Reference Materials

[fa icon="calendar'] Mar 8, 2018 2:37:07 PM / by Dave Coler posted in Certified Reference Materials, stainless steel alloys, Custom Reference Materials

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Developing new reference materials can be a time consuming process often requiring several years to complete. This means that reference material development typically lags well behind the introduction new metal alloys created to meet the needs of  increasingly demanding industrial applications. This disparity creates a problem for chemists working with analytical methods such as XRF, ICP and OE, as these are comparative techniques and require reference materials to calibrate and validate.

 

 

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How to Digest Nickel 718 Alloy

[fa icon="calendar'] Feb 7, 2018 7:30:00 AM / by Dave Coler posted in 718 alloy, coldBlock, icp sample preparation

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New Product Announcement: New CRM's for Low Alloy and Maraging Steel

[fa icon="calendar'] Feb 1, 2018 6:00:00 AM / by Dave Coler posted in Certified Reference Materials, low alloy steel, Steel CRMs

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 ARMI is pleased to announce the release of 7 new products that cover 5 steel alloy grades.   

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How to Digest 316 Stainless Steel for ICP Analysis Using the ColdBlock Digestion System

[fa icon="calendar'] Jan 30, 2018 5:40:25 PM / by Dave Coler posted in stainless steel alloys, icp sample preparation

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The ColdBlock system uses infrared radiation to rapidly digest metal alloy samples and a cooling block to condense out escaping vapors minimizing the loss of volatile elements.  Our preliminary results, detailed in a previous blog post (A New Sample Preparation Technique for  Metal Alloys), looked promising so we are now conducting validation studies with IARM CRM’s of various alloys.  This post details our validation study using CRM IARM 5I, a Grade 316 stainless steel alloy.

Digestion Procedure

5 separate 0.5g aliquots of CRM IARM 5I were prepared using 20ml of aqua regia in a quartz digestion tube.  The 5 digestion vessels were loaded into a 6 position ColdBlock digestion system and digested for 15 minutes at 28% power.  The digested samples were diluted to a total volume of 50ml using deionized water and transferred to a centrifuge tube.  1 ml of HF was then added to each centrifuge tube to stabilize the solution. The samples were then analyzed on a Spectro Arcos ICP-OES in our laboratory.  The results are detailed below.  The reproducibility of each of the 5 digestions is very good, and the average values agree well with the certified values for all elements including Si and volatile elements such as As and S.     We will be posting the resuts of  validation studies on other alloys in the near future so subscribe to our blog to be sure you are automatically notified.

If you would like to learn more about this technology you can visit our product page Learn More

 

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Positive Material Identification

[fa icon="calendar'] Jan 23, 2018 4:00:00 AM / by Dave Coler posted in XRF, positive material identification

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Positive material identification or PMI is the  verification of metal alloys based on their chemical composition.  This methodology is used for a wide range of applications where the grade of metal alloy used in a particular application needs to be confirmed.  PMI is used in a wide range of applications, but most commonly in industrial settings where using the wrong metal alloy grade  can result in premature corrosion or even failure creating a potentially serious safety hazard.  The chemical verification of alloys already being used in industrial applications often requires that the analysis be non -destructive and performed insitu.  This is most commonly performed using a handheld XRF unit often called a "PMI gun" or portable OES instrument.  

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Raising the Bar for Nickel Alloy CRM's

[fa icon="calendar'] Jan 16, 2018 4:00:00 AM / by Dave Coler posted in nickel alloys

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ARMI is proud to release 10 new Nickel alloy CRM's for chemical analysis.   These CRM's have expanded  data for both certified and indicative  elements.                                                                                                   

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New ARMI Analytical Capabilities

[fa icon="calendar'] Dec 20, 2017 2:53:35 PM / by Dave Coler posted in ICP, WDXRF, Custom Reference Materials

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LGC ARMI now has new analytical capabilities including ICP-OES, ICP-MS and WDXRF in our Manchester, NH facility.  Our ISO 17025 laboratory is also equipped with the new ColdBlock rapid digestion system as well as other conventional sample preparation equipment.

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AISI Grades 1045, 4130, 4820 and ASTM A36 Now Available

[fa icon="calendar'] Dec 5, 2017 2:42:08 PM / by Dave Coler posted in carbon steel, low alloy steel, AISI 4130, AISI 4820, AISI 1045, A36

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ARMI is pleased to release  four new  steel certified reference materials.  These include; IARM 200D (AISI 1045) ,   IARM 143F (AISI 4130) , IARM 155F (AISI 4820)  and IARM  213D (ASTM A36).   

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New Steel Certified Reference Materials

[fa icon="calendar'] Nov 7, 2017 10:38:12 AM / by Dave Coler posted in carbon steel, low alloy steel, metal CRMs

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ARMI is pleased to announce the release of 5 new steel certified reference materials.  These new reference materials include 5 low alloy steels; AISI grades 4140, 4330, 4340, E52100 and 5Cr ½Mo.

As always these reference materials are available in three different forms depending on your analytical technique; 38mm diameter x 3mm thickness for XRF, 38mm diameter x 19mm thickness for arc spark OES or as chips for analysis by ICP or AA.  

The complete listing of the new reference materials are shown in the table below along with links to the certificates of analysis.  You can also check out our new products page to see all of our latest CRM's.

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