1.1 Scope
Mainly used in physics, chemistry, biology, material science, geology, petroleum and other disciplines; it has been widely used in the qualitative, quantitative and chemical structure analysis of volatile and semi-volatile organic compounds.
1.2 Instrument parameters
Instrument model: TGA8000/CLARUS SQ8T/FRONTIER
The technical indicators are: mass range: 1-1200amu; mass stability: (+/-) 0.10m/z, over 48 hours;
Maximum scan rate: greater than or equal to 12500Da/sec; maximum oven temperature: 450P; operating temperature range from 4P to 450P above room temperature
1.3 Sample preparation
Single maximum temperature: 850P; the sample should not volatilize corrosive gas; TG-IR sample: solid 10 ~ 20mg; TG-MS: solid/liquid, which needs to be dissolved in an organic solvent with a lower boiling point.
1.4 Instrument pictures
1.1 Scope
It is mainly used in chemistry, biology, chemical engineering and other disciplines; it has been widely used to determine the content of major, trace and trace elements in various substances (dissolved in hydrochloric acid, nitric acid, hydrogen acid, etc.).
1.2 Instrument parameters
Instrument model: Optima8300
The technical indicators are: measuring range: 0.03%-100%; automatic sampler
1.3 Sample preparation
The liquid sample to be tested must be weakly acidic (recommended nitric acid matrix), and the mass fraction of acid is less than 2%. If the liquid obtained after digestion, leaching and extraction, it must be treated with acid and indicate the type of reagent used; please dilute the liquid sample by yourself And control the concentration of the element to be tested within the recommended range (0.1ppm ~ 50ppm). If it exceeds the recommended range, the accuracy of the test results is not guaranteed.
1.4 Instrument pictures
1.1 Scope
Mainly used in chemistry, biology, petroleum and other disciplines; it has been widely used in material separation.
1.2 Instrument parameters
Instrument model: GPC50 (IS5)
The technical indicators are: repeatability better than 0.07%, resolution 24bits
1.3 Sample preparation
Organic samples should be dissolved in organic solvents, and the maximum molecular weight should not exceed 65,000; aqueous samples should be dissolved in water.
1.4 Instrument pictures
1.1 Scope
Mainly used in polymer and plastic analysis; analytical services; quality control QA/QC; pharmaceuticals; education; forensic criminal investigation; jewelry and jade analysis and other disciplines.
1.2 Instrument parameters
Instrument model: Nicolet iS10
The technical indicator is: spectral resolution: better than 0.4cm-1
Spectral range: 7800 ~ 350cm-1 optimized mid-infrared KBr beamsplitter; 11000 ~ 375cm-1 XT KBr broadband mid/near-infrared optical beamsplitter; peak- Peak noise value It; 1.24×10-5au (dtgs detector, kbr window, 1 minute scan);
Fl^R standard linearity (ASTM E1421): <0.1%t; wavenumber accuracy: better than 0.01cm-1; fast scan: 40 spectra/second;
Host size: 500mm x 570mm x 250mm ( W x D x H ); Host weight: 39Kg; Compliant with specifications: CE, ETL
1.3 Sample preparation
Take 0.5 – 2 mg of the dry sample, grind it in an agate mortar, add 100 – 200 mg of ground and dry KBr or KCI powder, mix it evenly, add it to the film, and press slowly under the tablet machine to make a certain A transparent sheet of diameter and thickness, which is placed in the instrument beam for detection.
1.4 Instrument pictures
1.1 Scope
Mainly used for the analysis of anions and cations, especially the analysis of anions, the detection limit is from yg/L to mg/L, and the simultaneous determination of multiple ions is simple and fast. It is widely used in the determination of the separation of anions, cations, organic amines, organic acids, sugar alcohols), amino acids and other substances. In addition, it can be used in conjunction with ICPMS to analyze morphological elements, and has a wide range of applications in chemistry, environment, geology, food, pharmacy, medicine, electronic industry, nanomaterials, etc.
1.2 Instrument parameters
The instrument model is AQUION; manufacturer: Thermo Fisher Scientific Co., Ltd.
The technical indicators are: detection limit from yg/L to mg/L; detector resolution: w0.0035nS/cm, signal acquisition frequency: 80Hz
1.3 Sample preparation
For conventional water samples, a 0.45 μm filter should be used before injection to avoid clogging the chromatographic column or suppressor; for samples containing high concentrations of organic compounds or metal ions, pretreatment is required before injection to remove the impurities in the sample. organic matter or metal ions.
Samples are collected in high-density polyethylene bottles washed with deionized water. Do not use strong acids or detergents to clean the container, otherwise some ions will remain on the bottle wall and interfere with the analysis results.
If the sample cannot be analyzed on the day of collection, it should be immediately filtered through a 0.45 um filter, otherwise the bacteria in it will alter the sample concentration. Even if the samples are stored in the environment of 4P, the growth of bacteria can only be inhibited but not completely eliminated.
If the sample contains NO2- and SO32•, it needs to be analyzed as soon as possible, otherwise it will be oxidized to NO3- and SO4%. Other samples can be stored in the refrigerator, and the concentration of ions will not change significantly within a week .
1.4 Instrument pictures
1.1 Scope
Mainly used in chemistry, analytical chemistry, petrochemical and other disciplines; it has been widely used in the analysis of volatile, low boiling point and thermally stable substances.
1.2 Instrument parameters
Instrument model: TRACE 1300
The technical indicators are: Inlet temperature: 70 ~ 80P
EPC Control: 0.001 psi
1.3 Sample preparation
The sample is required to be volatile and have a low boiling point.
1.4 Instrument pictures
