METHODS - 9122 Annonces
Vendredi 09 août 2019
First, we need to determine if there is a leak in the pipette. 1. Detection method: 1) Visual inspection: first pipette the liquid using the pipette to be tested, then let it stand vertically for 15 seconds to see if there is a slow flow of droplets. If there is a droplet flowing out slowly...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Vendredi 09 août 2019
Reversed-phase chromatography (RPC) contains any chromatographic method using a non-polar stationary phase. The word “reverse” has a historical background. In the 1970s, most liquid chromatography was performed on unmodified silica or alumina. Their surface chemistry is hydrophilic...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 08 août 2019
Chromatography is a separation and analysis method and the separation is the core. Therefore, HPLC columns are the heart of the chromatographic system. The requirements for the column are high efficiency, good selectivity and fast analysis speed. Generally, the column length of about...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 07 août 2019
Pipe ttes are often used to remove a small amount of liquid in the laboratory. Micropipette first appeared in 1956, invented by Schnitger who is a scientist of the Institute of physiology and chemistry, Germany. Pipettes of different specifications are equipped with different sizes...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 07 août 2019
Food safety testing is a major issue related to people's livelihood. In recent years, the QuEChERS method has been widely used in the pretreatment of food safety detection samples. In addition, the method has been applied to trace analysis. QuEChERS Application The international application...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 07 août 2019
The thimble is utilized in extraction, so the dissolution rate of impurities is a comparatively deductive target. For the deficient data of cellulose extraction thimbles, the mental content in glass fiber ones has to be tested, and respective results of different sizes are listed...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 06 août 2019
We are the one of the largest potential suppliers of Used Cooking oil with the prices of per ton USD: 300 CIF to your nearest port. The Specification of our UCO is as detailed below. - Free fatty acids: 1.75 % - M.I.U (Moisture and Impurities): 0.02 % - Saponification value: 186 - Iodine value...
STEFAREZ KFT
- 1087 - BUDAPEST
- +36 3 09 16 88 74
Mardi 06 août 2019
In recent years, the application of HPLC in inorganic analysis has developed rapidly, and the use of flash columns has been more and more widely because of a method that can rapidly determine heavy metal elements in environmental water samples. Matters needing the attention of flash columns 1...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Lundi 05 août 2019
Quantité : 500 tons
316L Stainless Steel Pipe Material 304: 0cr18ni9, 0cr17ni8 201: 1cr17mn6ni5n,1cr13mn9ni1n 316: 0cr17ni12 or as customer's request Size(round pipe) 9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 10 1.6, 114.3, 127, 133, 159, 168...
Glory diamond industry limited
- 450000 - zhegnzhou
- +8613526452280
Lundi 05 août 2019
Cold Drawn Steel Bar SAE4140 1.Product name: Cold drawn 4140 steel round bar for mechanical using 2.Outside Diameter: From 1mm to 400mm 3. Material Grade : 4140 4.Main Standards: ASTMA276,ASTMA312,ASTMA213,GB/T14975-200 2,GB/T14976- 2002,GB/T13296-91,JIS 5.Processing methods...
Glory diamond industry limited
- 450000 - zhegnzhou
- +8613526452280
Lundi 05 août 2019
Quantité : 1000 tons - Prix : 720 usd/ton
Cold drawn steel bar SAE1020 1.Product name: Cold drawn SAE1020 steel round bar. 2.Outside Diameter: From 1mm to 400mm 3. Material Grade : SAE1020 4.Main Standards: ASTMA276,ASTMA312,ASTMA213,GB/T14975-200 2,GB/T14976- 2002,GB/T13296-91,JIS 5.Processing methods: Cold Drawn...
Glory diamond industry limited
- 450000 - zhegnzhou
- +8613526452280
Lundi 05 août 2019
QuEChERS method has unique advantages in pesticide residue analysis. Due to the irrational use of pesticides and inadequate supervision of pesticide use, people may suffer from acute or chronic pesticide poisoning after eating pesticide-contaminated food, and even threaten human health...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Samedi 03 août 2019
Quantité : 10000PCS/m - Prix : 25 USD above
Overview Iammeter is a dedicated remote energy monitoring system developed by us, to which you can connect your own Modbus energy meter and then start to monitor the electricity usage for your household electricity system, or commercial electricity system, or industrial electricity...
Beijing Lewei IOT Technologies Co., Ltd
- 100043 - beijing
- 01052981332
Samedi 03 août 2019
An air filter housing is a kind of air filtration device, as one of pneumatic three pieces, which are generally used to prevent dust for workshops, plants, operating rooms, laboratories or electronic mechanical communication equipment. - Filtration precision - The key to affect the...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 01 août 2019
The flat sheet ceramic membrane is a new type of high temperature plate porous ceramic membrane, which is prepared by high temperature sintering process using inorganic materials such as alumina. Compared with the organic film, ceramic flat membrane has the advantages of good chemical stability...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Jeudi 01 août 2019
Ceramic membranes (Porous Ceramic Membrane & tubular ceramic membrane) are available for microfiltration, ultrafiltration and nanofiltration as single-channel or multiple-channel elements with channel diameters between 2 and 16mm. Their main characteristics of porous tubular ceramic...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Jeudi 01 août 2019
QuEChERs is a sample treatment and purification technology for the detection of multiple pesticide residues in high-water-content food. Because it simplifies the previously complex extraction procedures and expands the scope of the extracted pesticide residues, QuEChERs becomes an...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 31 juillet 2019
CVD diamond (Chemical Vapor Deposition diamond). The mixture of carbon-containing gas and oxygen is excited and decomposed at a high temperature and a pressure lower than the standard atmospheric pressure to form an active diamond carbon atom, and the deposit is alternately grown...
- 450000 - zhengzhou
- 0371 68616868
Mercredi 31 juillet 2019
Sample vials play an important role in the experiments. We'd better not reuse them. If it has to be reused, the cleaning method is very important. It is noteworthy that vial pads must be replaced with new ones. Otherwise, the quantitative results will be affected. And here we will...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 30 juillet 2019
Since its birth, the QuEChERS method has been widely used in pesticide residue analysis due to its unique advantages and characteristics of fast, simple and cheap. Lehotay et al. established a method, which uses the QuEChERS method to treat samples and analyze 229 kinds of pesticides...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 30 juillet 2019
This article will focus on the methods of using the bottle-top dispensers. 1. Put the intake pipe into the dispenser and then tighten the nut. 2. Put the drain pipe into the dispenser and then tighten it. 3. Take off the cap of the drain pipe and put it under the drain pipe 4. Adjust...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 23 juillet 2019
White Portland cement or white ordinary Portland cement (WOPC) is similar to ordinary, gray Portland cement in all respects except for its high degree of whiteness. Obtaining this color requires substantial modification to the method of manufacture, and because of this, it is somewhat...
OREWORLD TRADE(TANGSHAN) CO., LTD.
- 63000 - tangshan
- 03155392228
Mardi 23 juillet 2019
Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...
OREWORLD TRADE(TANGSHAN) CO., LTD.
- 63000 - tangshan
- 03155392228
Vendredi 19 juillet 2019
Bonded-phase chromatography is a liquid-liquid chromatography method in which a stationary phase is covalently bound to a carrier particle, which overcomes the mechanical shock in the distribution chromatography, the constant loss of the stationary phase and the gradual change of...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 16 juillet 2019
Bulk Density Tester BeDensi B1 bulk density testing equipment adopts natural deposition method. Its manufacturing standard meets the criterion of GB / T16913.3-1997- Part III: Determination of bulk density. Measurement: Bulk density Testing sample: except for metal powder Technology...
Dandong Bettersize Instruments Ltd.
- 118009 - Dandong
- +15 1 41 55 76 96
Mardi 16 juillet 2019
Bulk Density Meter BeDensi B1-S bulk density meter uses Scott capacity meter method to measure bulk density of various metal powder. Manufacturing standard of BeDensi B1-S bulk density test apparatus meets the criterion of GB / T5060-1985 (ISO 3923/2). Measurement: Bulk density Testing sample...
Dandong Bettersize Instruments Ltd.
- 118009 - Dandong
- +15 1 41 55 76 96
Mardi 16 juillet 2019
Image Particle Size and Particle Shape Analyzer BeVision S1 employs the latest software particle image processing technology for the traditional microscope imaging method, providing intuitive and accurate particle size distribution analysis. BeVision S1 is widely used in particle...
Dandong Bettersize Instruments Ltd.
- 118009 - Dandong
- +15 1 41 55 76 96
Mardi 16 juillet 2019
Dynamic light scattering (DLS), also known as photon correlation spectroscopy (PCS), is a commonly used characterization method for nanoparticles. DLS particle size analyzer has the advantages of accuracy, rapidity, and good repeatability With the update of the instrument and the...
Dandong Bettersize Instruments Ltd.
- 118009 - Dandong
- +15 1 41 55 76 96
Mardi 16 juillet 2019
Particle size measurement using static light scattering The particle size distribution as a parameter to specify a powder or dispersion plays a central role in many applications. Examples are construction material (sands, cements), pharmaceutical development, lime stones, ceramics...
Dandong Bettersize Instruments Ltd.
- 118009 - Dandong
- +15 1 41 55 76 96
Lundi 15 juillet 2019
Syringe filters are widely used in laboratories. The users do not need to change membranes and clean filters, which can save complex and time-consuming preparations. It is very convenient and easy to operate. They are mainly used in sample pre-filtration, clarification, degerming of particles...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33