The main devices used for determining the chemical composition of materials by wet chemistry methods are spectrophotometers, atomic absorption spectroscopy (Atomic Absorption Spectroscopy), and inductively coupled plasma (Inductively Coupled Plasma). The ICP device is one of the emission spectroscopy methods, where atomization occurs with the help of plasma generated by an inert gas, mostly Argon (Ar). The ICP-OES device can perform elemental emission readings from both radial and axial perspectives relative to the vertical plasma and works based on atomic emission, which can measure a large number of periodic table elements in various compounds, including soil, water, metals, and polymer samples, over a wide range of concentrations and with detection limits in ppb and ppm. Compared to other methods, this technique is more sensitive, with better detection limits and higher reproducibility. The major advantage of this device is simultaneous measurement of elements in a short time with high accuracy and repeatability. The device has a radio frequency (RF) generator that creates a hot and ionized Argon gas environment, referred to as plasma. The solid-state RF system ensures a strong, reliable plasma that requires no maintenance and maintains analytical stability over the long term. In this test, the sample will be completely destroyed.
* Device Name: PerkinElmer
* Device Model: Optima 8000
Atomic absorption spectroscopy (Atomic Absorption Spectroscopy) is a spectroscopic method for quantitative measurement of chemical elements using light absorption by atoms in the gaseous state. In analytical chemistry, this technique is used to determine the concentration of a specific element in a sample. The basis of this technique is the use of an absorption device to evaluate the analyte concentration in the sample; therefore, a relationship between the amount of light absorbed by the sample and the sample concentration is required, which is the Beer-Lambert law. In summary, electrons of atoms can move to higher energy levels by absorbing a specific wavelength (energy) and become temporarily excited. When the excited atom returns to the ground state, it emits a specific wavelength. By measuring the sample absorption, drawing a calibration curve, and applying the Beer-Lambert law, the unknown amount in the sample can be determined.
* Device Name: PerkinElmer * Device Model: AAnalyst 400
* Device Name: AA240FS * Device Model: SpectrAA-10Plus
Determination of carbon and sulfur in steels, metal alloys, ceramics, soil, ash, oxides, and carbides is carried out with an accuracy of one-hundredth of a weight percent. For this purpose, the device is usually equipped with two furnaces: induction and resistance. In elemental analysis using the carbon and sulfur measurement device, the sample is completely melted in a furnace, and by measuring the gases released from the sample, the amounts of carbon and sulfur are determined with high accuracy.
* Device Name: Leco * Device Model: CS230
* Device Name: Wuxi Jeibo – CS 996
Most important services offered in the Chemistry and Environmental Laboratory:
- Analysis of metal samples based on iron, tin, lead, copper, aluminum, zinc, magnesium, antimony, nickel, molybdenum, cobalt, etc.
- Analysis of ferroalloy samples: ferromolybdenum, ferromanganese, ferrochromium, ferrosilicon, ferrosilicomanganese
- Determination of coating type and coating mass: aluminized, galvanized, tin coating, and phosphate coating on sheet, wire, and steel tube samples
- Determination of grain size, uniformity coefficient, distribution coefficient, effective grain size
- Determination of fixed carbon, volatile matter, ash, moisture, calorific value, coal grade, and sulfur analysis in coke, graphite, and coal
- Analysis of briquette coal samples and examination for permissible inclusions
- Analysis of mineral pitch samples
- Measurement of pH in liquid and mineral samples
- Determination of density of soil, minerals, and liquids
- Determination of Archimedes density
- Determination of mercury density
- Determination of oil density
- Complete analysis of cement samples
- Complete analysis of table salt
- Analysis of heavy metals extracted in metal and polymer samples and conformity with standards for health and drinking water use
- Total migration (food grade) or leaching test for food containers, cookware, toys, park forms, etc.
- Measurement of precious metals: Au, Ir, Os, Ag, Pt, Pd, Rh, Ru (platinum group)
- Determination of C and S elements in metal and mineral samples
- Analysis of hematite, magnetite iron ore
- Analysis of sponge iron samples: Fe metal, Fe total, metallization
- Complete analysis of AdBlue and conformity with standards
- Determination of sulfur purity in samples
- Determination of hexavalent chromium (Cr+6) in polymer, metal, water, and waste samples
- Analysis of activated carbon: high hardness, density, iodine number, methylene blue absorption
- Gas chromatography GC-Mass
- Determination of boron element in glass, borax, ferroboron, and aluminum ingot samples
- Analysis of rock wool and thermal insulation: Na, F, Cl, SiO3, shot content, and thermal resistance
- Analysis of samples using inductively coupled plasma (ICP-OES), (ICP-Mass)
- Determination of metal base purity with 99.99% weight accuracy using (ICP-OES), (ICP-Mass)
- Determination of acid purity percentage
- Determination of oxygen in copper
- Determination of polymer coatings on copper pipes
- Vermiculite content test
- Analysis of acidity and alkalinity in oil and liquid samples
- Analysis of swelling index, gel formation, methylene blue in bentonite samples
- Complete analysis of dental amalgam and conformity with standards
- Analysis of silicon anode (high silicon cast iron), crucible sample, table salt, microsilica gel, concrete additives, mortar
- Determination of boiling point of volatile liquids up to 260°C
- Testing aquarium filters (activated carbon), refrigerator filters
- Determination of iodine number in activated carbon samples
- Determination of water and sulfur in diesel and organic solvents
- High hardness analysis of PAN
- Analysis of copper-phosphorus-silver samples
- Analysis of oxygen, nitrogen, and argon gas cylinder samples
- Determination of gas cylinder nature (chlorine)
- Determination of solubility of minerals in water and acid
- Formaldehyde analysis in carpet
- Determination of sintering point up to 1200°C
- Testing antifreeze samples (pH, density, reserve alkalinity, chlorine, ash, water content, boiling point, etc.)
- Complete analysis of water and drinking water: electrical conductivity, total water hardness, calcium hardness, magnesium hardness, analysis of anions and cations in water, analysis of metal cations and heavy metals in water, pH, color, turbidity, alkalinity and acidity, TDS and TSS measurement
- Measurement of cations NH4+, Na, K, Ca, Mg with 0.1 mg/L accuracy
- Measurement of anions: SO4, NO3, NO2, PO4, Br, Cl with 0.1 mg/L accuracy
- Measurement of biological oxygen demand (BOD)
- Measurement of chemical oxygen demand (COD)
- Measurement of carbonate and bicarbonate in water
- Measurement of phenol and formaldehyde
- Measurement of water salinity
- Determination of total and fecal coliforms
- Determination of nitrogen by Kjeldahl method
- Analysis of dialysis water and conformity with standards
- Cyanide measurement in water samples
- Sulfide analysis in water and wastewater
- Determination of iodine content in water
- Oil and grease (Oil, Grease) analysis in water and wastewater samples
- Determination of sulfate ash in samples
- Detergent analysis in water samples
- Pseudomonas search and count
- Fecal Streptococcus count
- Heterotrophic bacteria count
- Staphylococcus bacteria count
- Microbiological tests on waste
- Parasite egg count
- Complete analysis of lithium bromide samples