Trace-element chemistry
ICP-OES analysis of impurities for source comparison, purification assessment and production-batch review.
Jingui Testing Center · In-house laboratory
Quartz and silica testing, from ore to finished material.
We analyse quartz ore, quartz sand and silica powder for trace elements, particle-size distribution, sieve fractions and agreed supporting indicators. Results are supplied in a technical report with sample and test traceability.
01In-houseSample preparation and testing workflow
0213 elementsICP-OES impurity analysis
03D10 · D50 · D90Particle distribution and curve
04Technical reportsSample identity, methods, results and review
What we test
Testing matched to your material and process.
Testing supports source screening, incoming inspection, treatment comparison, product grading and batch review. We agree the scope, sample preparation and reporting requirements before accepting samples.
Particle-size distribution
Laser-diffraction results including the full distribution curve and characteristic D10, D50 and D90 values.
Mesh & sieve analysis
Retained and passing fractions at agreed mesh sizes or apertures, for classification and process control.
Supporting indicators
Fe₂O₃, whiteness, electrical conductivity and agreed ion tests provide supporting information alongside trace chemistry and particle-size data.
Comparative evaluation
Side-by-side evaluation of ore, quartz sand or silica powder to support sourcing, process adjustment and batch review.
01 / Trace chemistry
Check purity and the individual impurities.
Our 13-element ICP-OES analysis supports quartz and silica evaluation. Compare sources, measure changes after treatment and check batches against agreed limits.
AlFeCaTiMgNaKLiCrMnCuNiZr
- Source screeningCompare the chemical profile of ore or quartz sand from different sources.
- Process comparisonCompare impurity levels in feedstock, intermediate products and finished materials.
- Batch reviewAssess the sample against agreed parameters and criteria.
02 / Particle & mesh control
Check the full distribution and usable size fraction.
Laser diffraction measures the overall particle-size distribution. Sieve analysis measures the retained and passing fractions at specified mesh sizes. Together they support production and purchasing decisions.
- Laser diffractionFull curve with D10, D50 and D90 characteristic values.
- Sieve analysisRetained and passing percentages at agreed mesh sizes or apertures.
- Preparation controlDrying, splitting and dispersion conditions are recorded for each test.
- Comparable dataSamples are tested using the same method so that results can be compared.
Laboratory configuration
Analytical instruments and sample-preparation support.
The laboratory has equipment for elemental and particle analysis, weighing, sample preparation, appearance measurements and optical observation.
Agilent 5900 ICP-OES
Analyses the specified 13 trace elements after agreed sample preparation.
Mastersizer 2000
Laser-diffraction particle analysis with a distribution curve and D10, D50 and D90 values.
Precision sieve system
Measures retained and passing fractions at the mesh sizes or apertures agreed for the test.
Sample preparation
Analytical balances, a muffle furnace and PTFE vessels support weighing, heat treatment and sample preparation for the selected method.
Atomic absorption spectrometry
Measures selected elements using an element-specific method; it complements ICP-OES within the agreed test scope.
Ion and conductivity meters
Measure agreed ions and solution conductivity under defined preparation conditions; conductivity is not a direct test of solid-quartz insulation.
Whiteness measurement
Compares optical appearance for colour-sensitive materials. Whiteness is evaluated alongside chemical results, not used as a purity assay.
Optical microscopy
Shows particle shape, visible inclusions and surface condition. Nanoscale features require suitable electron microscopy data.
Submission workflow
Six steps from sample receipt to report.
- 01
Confirm the testing objective
Tell us the material, application and what you need the results to establish.
- 02
Register the sample
Register sample identity, condition, quantity and customer reference before testing.
- 03
Prepare the sample
Split, dry, digest, disperse or sieve the sample using the agreed method.
- 04
Measure
Measure trace elements, particle size or sieve fractions using the selected instruments.
- 05
Review the data
Check the result set, units, curves and any relevant sample or method limitations.
- 06
Report & interpret
Provide a report with sample and test traceability, and explain the results in relation to your testing objective.
What you receive
Data that can be traced back to the submitted sample.
Each result includes the sample identity, method and units. Particle size, whiteness and Fe measurements can support incoming inspection and processing-batch review.
Request a testing plan →- 01Sample record
Customer reference, material identity, receipt condition and preparation notes.
- 02Methods and reporting criteria
Test methods, units, measurement conditions and agreed reporting criteria.
- 03Result set
Element values, distribution curve, D-values or retained and passing fractions.
- 04Technical review
Result interpretation, sample comparisons and analytical limitations.
We confirm sample quantity, preparation, test items, fees, turnaround time and reporting limits before acceptance. Unless specifically agreed and supported by the applicable qualifications, the deliverable is a technical test report, not statutory or accredited third-party certification.
Testing enquiry
What do you need to learn from your sample?
Tell us the material, sample form, required measurements, expected range and how you will use the results. We will confirm preparation, test methods, sample quantity, fees and turnaround time before acceptance.
Discuss a sample →