CHEMISTRY - 385 Annonces
Vendredi 28 août 2020
Quantité : 100 unités - Prix : Grande taille: 3000
ACADÉMIE CHINOISE DES SCIENCES MILITAIRES ET DÉVELOPPEMENT CONJOINT CDC DE CHINE. PRODUIT DÉSIGNÉ DU COMITÉ DE TRAVAIL TCM SCIENCE DE LA VIE. LE PREMIER PURIFICATEUR D'AIR GRAPHENE COVID-19 AU MONDE. STÉRILISATEUR DE VIRUS À EFFET TOTAL GRAPHÈNE. SAINT PATRON DE LA SANTÉ. VIRUS NEMESIS...
- 200000 - Shanghai
- +8619188506585
Mardi 05 mai 2020
Quantité : 1500 litre
Bonjour Madame et Monsieur ; Notre société ECOLAND est une société spécialisée dans l'extraction de l'huile précieuse de figue de barbarie installée en Tunisie. En fait, on dispose d'une chaine d'extraction d'huile bien installée dans une usine de superficie plus de 300m² avec toutes...
Lundi 20 janvier 2020
1. Why does the retention time sometimes drift and sometimes change rapidly when analyzed by HPLC? How to solve it? About drift ① The temperature control is not good. The solution is to use a constant temperature device to keep the HPLC column temperature constant. ② The mobile phase...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 14 janvier 2020
Filter paper can be qualitative and quantitative. In the application of analytical chemistry, after the inorganic compound is separated by filtration to separate out the precipitate, the residue collected on the filter paper can be used to calculate the loss rate during the experiment...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 09 janvier 2020
Hawach Scientific specialized in filtration products for more than decades years. All our filter papers are made from the imported membrane in the cleanroom. Before release to market, the products are consigned to the QC department for random inspection. In analytical chemistry, the...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Vendredi 03 janvier 2020
The vacuum filters are mainly applied for filtration of mobile phase of High-Performance Liquid Chromatography, particulate and microbiological contamination. They are the basic instruments in the chemistry lab. Particularly, the glass solvent filter can make filtration of all kinds...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 12 décembre 2019
Hawach bottle-top dispenser is an instrument for measuring liquid medicine. To ensure that your bottleneck dispenser has a long service life, some maintenance, and cleaning work can be done in the following situations: the pipette piston is not flexible; the dispensing of some restrictive...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Samedi 16 novembre 2019
Quantité : 8000kgs - Prix : USD0.025 - USD1.05
1) Properties Detonation-synthesized polycrystalline diamond micro powder The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening. The lapping and polishing efficiency of the detonation-synthesized polycrystalline...
- 450000 - zhengzhou
- 0371 68616868
Samedi 26 octobre 2019
Quantité : 8000kgs - Prix : USD0.025 - USD1.05
1) Properties Detonation-synthesized polycrystalline diamond powder The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening. The lapping and polishing efficiency of the detonation-synthesized polycrystalline diamond...
- 450000 - zhengzhou
- 0371 68616868
Samedi 12 octobre 2019
Quantité : 8000kgs - Prix : USD0.025 - USD1.05
1) Properties Detonation-synthesized polycrystalline diamond micro-powder The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening. Monocrystalline vs polycrystalline diamond:The lapping and polishing efficiency of...
- 450000 - zhengzhou
- 0371 68616868
Mercredi 25 septembre 2019
The pipette is a kind of accurate instrument for quantitative transferring and weighing liquid in biology and chemistry laboratories. The most relative element to keep the pipette accurate is tightness. There are several main factors affecting the tightness of the pipette. The first...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 19 septembre 2019
The determination of 10 plant polyphenols in tobacco samples by solid phase extraction and high-performance liquid chromatography as below: Plant polyphenols are important substances in tobacco. The content of polyphenols in tobacco has an important influence on tobacco quality. Therefore...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 18 septembre 2019
Quantité : 20GP - Prix : 5USD
Calcined Bauxite manufacturers produce Calcined Bauxite by firing (heating) the superior grade Bauxite at high temperature (from 850℃ to 1600℃). This removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57 % to 58 % in raw Bauxite, Calcined...
OREWORLD TRADE(TANGSHAN) CO., LTD.
- 63000 - tangshan
- 03155392228
Jeudi 12 septembre 2019
Vacuum filtration is a chemistry technique that can allow for a greater rate of filtration in the lab. In normal filtration, the gravity can provide the force drawing the liquid through the filter paper, but a pressure gradient performs this function in vacuum filtration, offering...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 12 septembre 2019
As an important branch of chromatography, high-performance liquid chromatography (HPLC) has become an important application of separation and analysis technology in the fields of chemistry, medicine, industry, agriculture, commodity inspection, and law inspection. Features of high-performance...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 14 août 2019
Flash column chromatography is an alternative to long column chromatography developed in 1978. This method aims to separate the components from the mixture and thereby purify it. It is built from existing long column chromatography techniques and is time-consuming and often unsatisfactory...
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
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
Mardi 06 août 2019
Sample Vials are an essential tool in the lab. These general purposes of glass vials are to provide exceptional resistance to heat shock and chemical leaching. Our sample vials are always used in the field of a biological agent, cosmetics, high-value chemistry. And we have high-quality...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Lundi 15 juillet 2019
All the technique cores of HPLC from Hawach Scientific are focused on the characteristics of the chromatogram column. Quality Recognition This is shown as the fact that terminal customers have published more than 500 papers on those journals at home and abroad. For famous oversea journals...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 04 juillet 2019
Flash column chromatography method is to separate the constituents from the mixture and thus purify it. In a word, flash column chromatography makes the samples go through the column which is filled with gel to achieve separation. In the beginning, the founder of flash column chromatography, Mr...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Lundi 01 juillet 2019
The aim of flash column chromatography is to separate components from the mixture and purify it. Briefly, flash column chromatography allows samples to be separated through columns filled with gels. Flash column chromatography has been widely used in organic chemistry since its inception...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 29 mai 2019
The CTE chloropac system is typically used for small to medium production capacities, while PPE system is typically used for larger production capacities of sodium hypochlorite. The Advantages for Applying Concentric Tubular Electrodes (CTE) Electrolyzer as Following: 1. Self-Cleaning...
Milestone Chlorination Technologies LLC.
- 250119 - Jinan
- +86 18615533110
Jeudi 09 mai 2019
Quantité : 1500Square - Prix : US $4.25-6.6/ Square
AVAILABLE COLOR: clear, ultra clear, bronze, grey, etc. Customized BACK PAINT: green, blue, gray; Coating: Double Coating THICKNESS: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm SIZE: 609mmx914mm, 914mmx914mm, 914mmx1220mm, 1220mmx1830mm, 1830mmx2440mm, 1524mmx2134mm, 2140mmx3300mm, 2440mmx3660mm etc...
Hangzhou Jinghu Glass Co., Ltd
- 311215 - Hangzhou
- +15 9 88 53 80 52
- 057182625715
Mercredi 06 mars 2019
Quantité : 10'000 lit
Nous pouvons attendre une production annuelle de 10'000 litres. Utilisée dans l'industrie parmaceutique, parfumerie et cosmétique. Localisation : Route de la Plantay, 5, 1163 Etoy, Personne à contacter : Marco Zottich, +41 7 89 53 91 08
Algue Marine
- 1163 - Etoy
- +41 7 89 53 91 08
Mercredi 06 mars 2019
Quantité : 90 lt year
Huiles essentielles de Criste marine - Crithmum maritimum Usages: Alimentaire, Cosmétique, Chimie, et Pharmaceutique. Localisation : Route de la Plantay, 5, 1163 Etoy, Personne à contacter : Marco Zottich, +41 7 89 53 91 08
Algue Marine
- 1163 - Etoy
- +41 7 89 53 91 08
Dimanche 06 janvier 2019
Penglai Huande Steel Valve CO., LTD is a Ball Valve Manufactruer specialized in the design, development, and production of stainless steel ball valves. It has many production lines such as Lost-wax investment casting, CNC machine, and assembly inspection etc. And, it had passed the...
Penglai Huande Steel Valve CO.,LTD
- hdsteelvalve
- 265601 - Shandong
- (+86) 535 5912518
Dimanche 23 septembre 2018
Quantité : 1 SET - Prix : $ 4000
- The brief introductions of QTZ-3D portable electric soil drilling rig QTZ-3D portable electric soil drilling rig is an electric version of the QTZ-3 (gasoline engine) produced by Shandong Master Machinery Group Co., Ltd. The improvement of QTZ-3D electric soil drilling rig is...
Shandong Master Machinery Group CO,. ltd.
- 272000 - Jining
- 008618865479507
Dimanche 23 septembre 2018
Quantité : 1 SET - Prix : $ 4000
- The brief introduction of QTZ-2 portable drilling rig QTZ-2 portable soil drilling rig is a upgraded product of the QTZ-1 portable soil drilling rig.The rig adopts the more power, and the impact force is stronger and the drilling depth is deeper, which can drill up to 10~15 meters...
Shandong Master Machinery Group CO,. ltd.
- 272000 - Jining
- 008618865479507
Dimanche 23 septembre 2018
Quantité : 1 SET - Prix : $ 4000
The Brief Introductions of QTZ-1 soil sampling rig QTZ-1 portable soil drilling rig is a portable soil sampling drilling machine developed by Shandong Master Machinery Group Co.,Ltd., which is comparable to a huge hydraulic and pneumatic drilling rig. The drilling rig is a dynamic...
Shandong Master Machinery Group CO,. ltd.
- 272000 - Jining
- 008618865479507