Admaterials has advanced state-of-the-art analytical testing instruments for a wide range of purposes from material identification and characterization to quality control monitoring. We have extensive experience of analysing a wide range of materials in surface analysis, composition and contamination measurement, trace elemental analysis and microscopy that is able to help you to understand well the properties of your materials.
Admaterials has invested on various instruments for chemical analysis and materials testing to provide a comprehensive testing services, included Spectroscopy, Mass spectrometry,Thermal analysis and Chromatography.
X-ray diffraction (XRD) is a powerful non-destructive technique for characterizing crystalline materials. X-ray diffraction peaks are produced by constructive interference of a monochromatic beam of x-rays scattered at specific angles from each set of lattice planes in a sample. The peak intensities are determined by the distribution of atoms within the lattice. Consequently, the x-ray diffraction pattern is the fingerprint of periodic atomic arrangements in a given material. A search of the standard database of x-ray diffraction patterns enables quick phase identification for a large variety of crystalline samples.
XRD can provide useful information based upon the powder diffraction pattern. Among the most common tests are the identification and quantification of the crystalline phases, determination of the percent crystallinity, and analysis of the crystal structure.
ARC/Spark OES Analysis
Spark optical emission spectrometers (S-OES) are the ideal instruments for metal analysis. Optical emission spectrometry using Arc/Spark excitation is the reference technique for rapid,elemental analysis of solid metallic samples. We provide metal composition analysis for the following application:
• Iron & steel and its alloys
• Aluminum and its alloys
• Copper and its alloys
Our TGA/DSC is used for testing in many applications at temperatures up to 1100⁰C over a wide range of heating rates. This technique is particularly useful for the following types of measurements:
• Compositional analysis of multi-component materials or blends
• Thermal stabilities
• Effects of reactive atmospheres on materials
• Moisture and volatiles content
• Collection of thermodynamic mass loss information
• Identification of hidden transitions obscured by mass loss
In many kinds of applications, FTIR can be used to identify chemicals from spills, paints, polymers,coatings, drugs, and contaminants. Admaterials primarily uses FTIR to assist our customers with identifying and analyzing materials.
• Identification of unknown materials
• Identification of polymers, plastics, and resins
• Quantitative determination of compounds in mixtures
• Determinating the quality or consistency of a sample
We are able to analyze the following elements:
As, Al, Ag, B, Be, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn,Mo, Na, Ni, P, Pb, Se, Sn, Sr, Tl, V, Zn and Hg.
Besides the environmental samples, ICP-AES has been used in many applications such as:
• Analysis Children’s toys and Child Care products
• Toxicity test
• Medical/Pharmacy Products to look for metal contaminants
• Compositional Analysis: RoHS Testing
Energy Dispersive X-ray Fluorescence (EDXRF) analysis techniques provide major, minor and trace element quantification across the broadest range of samples, including bulk solids, granules, powders,
thin films and all manner of liquids with extreme ease of sample preparation.It can be used for a wide range of elements, from carbon (9) to uranium (92) and wide variety of industries and applications including:cement production, mining, mineral beneficiation,iron, steel and non-ferrous metals, RoHS screening and quantification, petroleum and petrochemicals,polymers and related industries, glass production, pharmaceuticals, healthcare products,environmental, food and cosmetics.
Surface Area & Porosity Analysis
Brunauer-Emmett-Teller (BET) analysis provides precise specific surface area evaluation of materials by nitrogen multilayer adsorption measured as a function of relative pressure using a fully automated
analyser. Barrett-Joyner-Halenda (BJH) analysis can also be employed to determine pore area and specific pore volume using adsorption and desorption techniques. This technique characterises pore size
distribution independent of external area due to particle size of the sample. Admaterials is equiped with Micromeritics TriStar II for this analysis.
Carbon & Nitrogen Analyzer
We are equipped with elemental analyzer which analyses Nitrogen according to the DUMAS combustion principle and measures simultaneously Nitrogen and Total Carbon from a single analysis. The Inorganic Carbon is measured by Acidification of the sample. The Organic Carbon is calculated by difference (TC-IC) or measured as NPOC after pretreatment by acidification of the sample. The analyzer provides fast, accurate and low level analysis for these parameters in applications such as soil & plant, sludges & sediments, animal feed & grain, food, malt, fertilizer etc.
Pyrolysis gas chromatography (Py-GC) allows the analysis of small amounts of polymeric samples in a wide variety of forms including insoluble and composite materials without pretreatments and provides unique information that otherwise cannot be obtained. Py-GC is a very useful and powerful analytical technique for polymer characterization. One of the application is determination of silane concentration of the silane treated concrete for quality control of surface protection.
Inductively coupled plasma mass spectrometry (ICP-MS)
ICPMS is a technique to determine low concentrations ppb(ug/L) and ultra low (ppt) concentrations of elements/isotope. This is achieved by ionizing the sample with inductively coupled plasma and then using a mass spectrometer to separate and quantify those ions.
Applications includes trace elemental/metals analysis in water, seawater, soils, sludges, plant materials, food and Chinese Proprietary Medicine(CPM)/Traditional Chinese Medicine (TCM).
Ion Chromatography analysis (IC)
Ion chromatography (IC) is the separation and quantitative analysis of anions in an ionic solution using the analytical column. The chromatographic process separates the different ions within the sample. The amount of an anion is measured by the change in conductivity as the species passes through the detector.
Anions like Fluoride, Chloride, Nitrite, Bromide, Nitrate, Phosphate, Sulphate, Iodide can be analysed using IC.
Total Carbon (TC)/ Total Inorganic Carbon (TIC) / Total organic carbon (TOC) / Total nitrogen (TN) analyser
Besides the C/N analyser, we also have TOC and TN analyser for different types of water analysis. The Shimadzu Total nitrogen module TNM-1 uses chemiluminescence to measure total nitrogen in minutes. NPOC, IC, TC and TOC (TC-IC) measurements are also possible with the combustion catalytic oxidation/ NDIR method.
Headspace GC/MS is a specific GC/MS technique used to analyze volatile compounds. A sample is placed in a closed sampling vessel, heated using a known temperature profile, and the vapor in the vessel is sampled for analysis.
VOC sampling and analysis are used in a wide range of applications in the following industries:
Gas chromatography mass spectrometry is an analytical method that that combines the feature of gas chromatography that separates the components in a sample and mass spectrometry in which the compound’s mass spectrum appearing at a characteristic retention time in a GCMS analysis is identified.
Purge & trap GC/MS
P&T became a technique that was well-known and widely applied due the need to monitor VOCs in drinking water. Using this technique, it was possible to detect sub-ppb level VOCs of a wide variety. Today, P&T is routinely applied in the environmental area for the analysis of VOCs in soil and water.
A measured amount of sample is placed in a sealed vessel. The sample is purged with inert gas, causing VOCs to be swept out of the sample. The VOCs are retained in an analytical trap, which allows the purge gas to pass through to vent. The VOCs are then desorbed by heating the trap, injected into the GC by backflushing the trap with carrier gas, and separated and detected by normal GC operation. For aqueous matrices, the increase in efficiency can be upwards of 100 fold, using dynamic versus static headspace analysis.