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High purity metal (alloy) content analysis

2022-07-03 15:42:30   

Application Overview

   High purity metals are the combined product of many modern high technologies and are widely used in industries such as semiconductor materials, targets, aerospace materials and thin film coatings. Therefore, their purity and the type and content of impurity elements have a large impact on the performance of practical applications, so testing the type and content of elements in high purity metals or alloys is of essential value. The impurity content of high purity metals is usually at the ppm (mg/kg) level. High purity alloys are usually composed of more than 2 metals and have very low impurity levels. Analysis of high-purity metals (alloys) is often carried out by means of ICP-MS, but requires destruction of the sample, complex handling and a high demand on the pre-treatment process.

  The high sensitivity X-ray fluorescence spectrometer (HS XRF® ) developed by Beijing Ancoren is capable of analyzing high-purity metals and high-purity alloys from 2N to 5N; The leading fast fundamental parameter method allows accurate quantification of impurity elements even in the absence of standard samples.

Core technologies
(1)Hardware core technology

Monochromatic excitation aggregation excitation technology - energy dispersive X-ray fluorescence spectrometer (HS XRF^® )
Patent of Invention No. ZL 2015 1 0567341.1

● Monochromatic excitationThe X-ray tube emission spectrum is monochromatised by a fully focused hyperbolic bend to reduce the X-ray tube background interference by more than 2 orders of magnitude.

● Spotlight inspiresThe energy is focused on the smaller side of the sample, further increasing the intensity of the fluorescence rays received by the SDD detector from the sample elements.






(2)Software core technology
Fast FP® (Fast Fundamental Parameter Method)

●  Using a library of basic parameters and a series of advanced mathematical models.
 

●  Resolving uncertainties and analytical errors associated with various XRF effects.

●  Enables quantitative analysis of all types of samples without standard samples.



Performance data
(1)Elemental analysis of aluminium alloy impurities
  Table 1. Accuracy analysis of impurity elements in aluminium alloys

Sample name		Mg(%)	Si(%)	Fe(%)	Cu(%)	Mn(%)	Zn(%)	Ti(%)	Cr(%)	Ni(%)
gsb04-1542-2003-dsy001	Standard values	0.562	0.507	0.167	0.101	0.0950	0.0230	0.0250	0.0490	0.0009
	FP calculated value	0.492	0.566	0.180	0.0994	0.0891	0.0221	0.0242	0.0449	0.0009
gsb04-1542-2003-dsy003	Standard values	1.140	0.102	0.492	0.0260	0.0400	0.195	0.0083	0.140	0.0010
	FP calculated value	1.060	0.197	0.487	0.0246	0.0378	0.204	0.0078	0.134	0.0010
gsb04-1542-2003-dsy005	Standard values	0.380	0.675	0.0660	0.140	0.238	0.134	0.198	0.0910	0.0010
	FP calculated value	0.451	0.658	0.0603	0.134	0.219	0.131	0.186	0.0861	0.0010

 

Table 2. Aluminium alloy precision data

Number of measurements	Al(%)	Mg(%)	Si(%)	Fe(%)	Cu(%)	Mn(%)	Zn(%)	Ti(%)	Cr(%)	Ni(%)
SDY001-1	98.81	0.575	0.557	0.180	0.100	0.0892	0.0221	0.0239	0.0440	0.0015
SDY001-2	98.83	0.552	0.567	0.181	0.0999	0.0886	0.0223	0.0244	0.0446	0.0009
SDY001-3	98.84	0.516	0.588	0.183	0.0997	0.0895	0.0224	0.0240	0.0452	0.0009
SDY001-4	98.87	0.472	0.584	0.182	0.0997	0.0885	0.0223	0.0233	0.0443	0.0011
SDY001-5	98.83	0.500	0.597	0.182	0.0988	0.0894	0.0221	0.0234	0.0445	0.0009
SDY001-6	98.79	0.577	0.567	0.181	0.0985	0.0875	0.0220	0.0239	0.0437	0.0011
SDY001-7	98.82	0.493	0.674	0.184	0.1003	0.0895	0.0225	0.0240	0.0450	0.0009
Average	98.83	0.526	0.590	0.182	0.100	0.089	0.022	0.024	0.044	0.0010
Standard values	98.5	0.562	0.507	0.167	0.101	0.095	0.023	0.025	0.049	0.0009
RSD	0.03%	8.0%	6.7%	0.7%	0.7%	0.8%	0.7%	1.5%	1.1%	20.4%

 

(2)Elemental content analysis of copper alloys
Table 3: Summary of elemental accuracy data for copper alloys

Sample ID	Cu (%)	Zn (%)	Pb (%)	Bi (%)	Ni (ppm)
GBW(E)020201-H62 Standard values	61.58	38.34	0.0046	0.0001	5
FP calculated value	61.21	38.66	0.0057	0.0007	13.09
GBW(E)020201-H59 Standard values	58.57	39.44	1.64	0.0061	280
FP calculated value	57.99	39.73	1.598	0.0103	239.1

 

 
(1)High purity gold analysis
Table 4: Test data for high purity gold samples

Sample name	Au(%)	Zn(ppm)	Ga(ppm)	Pb(ppm)	Mn(ppm)	Ni(ppm)	Ag(ppm)	Cd(ppm)
Au-99.99	99.95	113.1	170.8	16.50	21.36	12.90	27.29	115.3

   
Note: Purchase of gold jewellery marked 999.9 (4N), PHECDA-PRO, analysis time 300 seconds.

Feature advantages

   Easy to operate


Ensure that a clean, flat test surface is sufficient.
 

   Fast analysis


Analysis time of 3 to 10 minutes for a single sample.
 

   Wide range of applications


Fast FP2.0 for the rapid establishment of analytical methods for different high purity metal and alloy samples.
 

   Uncalibrated quantification and calibration


Fast FP2.0 enables the standard-free quantification of high-purity metals and alloys, using a small number of standard samples to further improve quantification accuracy.
 

Original statement:

This article is the original work of ancoren company except for the quotation. If it is forwarded and quoted, the source must be indicated, otherwise it may involve infringement. For more detailed technical information, please consult the staff of Ancoren.

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