Viernes 21 junio 2019
1. Capacity setting For the adjustable pipette, it is usually operated in the range of 10% to 100%. The optimal pipetting capacity is in the range of 35% to 100%. At this time, it is less affected by the operation technique and can better protect the pipetting. Accuracy and precision...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
We can always hear such a conversation between those researchers. “Hey, buddy, what is your purity degree of the end products today?” “Damn it. Such a low degree that I cannot even use for the next step. Any better methods for clarifying raw materials?” Then there comes Hawach syringe filter...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
With different range of material manufacturing and capacity options, sample vials are usually used for collecting, storing, and transporting samples in the lab. You can find non-sterile or sterile vials in the color of amber or clear transparencies for a better view. Hawach glass...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
Flash chromatographic column, also called rapid chromatographic column(rapid column crossing, which means gradient elution, decompression or pressurization of the column), medium pressure chromatographic column(for example, rapid elution is achieved by pressurizing with nitrogen and...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
Hawach Scientific co., Ltd. provides PES pleated filter cartridge with high performance. PES uniform pore size distribution enables the filter elements to have excellent bacterial interception ability. PES has been widely used in medicine, biology, beverage and drinking water due...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
The material of the nylon membrane filter is aliphatic nylon. It has good hydrophilicity, the appropriate concentration of acid and alkali resistant, and applies not only acid and alkaline aqueous solution, but also suitable for organic solvent, such as s, hydrocarbon, ethers, esters...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Viernes 21 junio 2019
The cation chromatography column is a kind of high-performance liquid chromatography, which is a liquid chromatography method for analyzing anions and cations. The method has the advantages of good selectivity, sensitivity, rapidity, and simplicity, and can simultaneously measure...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
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Viernes 21 junio 2019
Normally SPE cartridge has two basic adsorption modes: target compound adsorption mode, impurity adsorption mode; 5 operation modes: gravity operation, manual positive pressure, centrifuge, negative pressure and positive pressure mode. Now let's review the whole process step by step...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jueves 20 junio 2019
Basic Knowledge of Vacuum Filtration Based on the principle that under the same pressure (vacuum degree), the vaporization temperature of the water is lower than that of oil, scientists make practical equipment which is called vacuum filter. In fact, vacuum filtration is the most...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
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Jueves 20 junio 2019
Extraction is often susceptible to matrix interference. One analytical method is fine in this matrix but can become problematic in another matrix. If we encounter such a situation, how can we improve the QuEChERS method to overcome it? For pesticide residues, most of the food samples...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jueves 20 junio 2019
Suitable for Soxhlet-type and other similar devices, the extraction thimbles are used to adapt a sample of solid material to extract certain components out, with the addition of sufficient and appropriate solvent. Cellulose extraction thimbles which are made of high-quality alpha...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jueves 20 junio 2019
Firstly, let's divide those bottle-top dispensers into 3 groups according to their materials A. Highly corrosion resistant materials such as PTFE, PFA, boron silicate, platinum, etc. Application: Resistant to high-temperature sterilization (121℃), withstand most of the acid, alkali...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
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Jueves 20 junio 2019
Filter paper has excellent filtration property and strong absorption performance on liquid. Scientific workers use filter paper as a kind of media in analytical laboratories to separate solution from solid. Currently, there are mainly three kinds of filter papers which can be purchased...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jueves 20 junio 2019
A filter paper is an effective filter medium and has been widely used in various fields. The technical indicators of a filter papers can be divided into two aspects: one is the filter characteristics and the other is the physical characteristics. Filtration characteristics include permeability...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jueves 20 junio 2019
PTFE stands for Poly Tetra Fluoroethylene. People generally call it non-sticking lining or easy-cleaning material. The material of PTFE has the characteristics of antiacid and antisolvent, which means it is hardly insoluble in all solvents. And PTFE is heat-resistant and with low...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
Hawach Scientific Co., Ltd is main laboratory supplies and industrial filter manufacturing enterprises, from raw materials and production process to ensure the maximum quality monitoring, each batch of a strict quality testing and product warranty. At present, users are distributed...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
In order to evaluate water quality, laboratory workers need to analyze the chemical constituents of water. At the same time, they have to consider the interactions between each constituent and the factor of photolysis when choosing the sample vial. It is better to shorten the sample's...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
Take the example of pear test to check whether a pear is up to the standard. Prepare the environment The first step: Suitable Acetonitrile salting-out extraction environment was prepared. Make the pears into a puree, take 10g to QuEChERS centrifuge tube of 50ml. Add extract solution...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
The most important process of the whole purification is selecting the most suitable Flash column. And now we will talk about the key content of the column: stationary phase. Stationary phase, commonly known as filler, is the most central part of chromatography. When we choose the...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
Hawach scientific takes filtration technology as its core and manufactures high-quality filtration products. Our products after years of research and development, the use of advanced technology and first-class production equipment, to provide customers with all kinds of high-quality...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Miércoles 19 junio 2019
Hawach Scientific sorts HPLC out of two series which are Xchroma and Echroma. Xchroma columns possess many and complete types of stationary phase(23 in total) with reliable qualities, while another one is cheaper among lower prices. Essential Technical Parameters Naming Rule It consists...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
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Miércoles 19 junio 2019
SPE cartridges, with a full name of Solid Phase extraction cartridges, is also called the SPE column( solid phase extraction column). The solid phase extraction column/cartridges is a pretreatment device for the sample being analyzed, which developed from the chromatographic column...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
In laboratories where the pipe ttes are used frequently, it is often heard that the sound of tapping the tips is one after another, adding a bit of music to the boring laboratory life. When you look into it, the user is afraid that the tip can't be tightened. After the tip is attached...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
Hawach glass solvent filters is an important part of laboratory filtration, and many customers often encounter cleaning problems when using glass solvent filters. The conventional cleaning methods mainly include the following: 1. Soaking with an acidic solvent: The advantage of this...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
A more efficient way to extract compounds from solid materials—Soxhlet extraction (also known as sand extraction). In the laboratory, Soxhlet extractor uses solvent reflux and siphon principle, so that the solid substance is continuously extracted by pure solvent, which saves solvent...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
As an indispensable experimental instrument for laboratory liquid operation, the bottle-top dispenser has the following characteristics. (1) The setting operation is simple, and the protective gloves can be worn to operate directly in the process of operation. In addition, it has...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
Qualitative filter papers usually apply to filter at atmospheric pressure, which uses the ability of the material to remove particles to separate the liquid and solid of the sample. It covers most of the laboratory applications, is used commonly for liquid clarification and, sometimes...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Martes 18 junio 2019
The primary feature of the vacuum filtration that it uses the classical oil-free pump with sand core filter bottle combination, which is suitable for most Laboratory filtration needs of universal filtering products. The characteristics of this product will be described in detail below...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Sábado 15 junio 2019
A VENDRE UN LOT DE 2000 BANDE DESSINEES AUTO-EDITEE (FORMAT ET QUALITE DE ASTERIX), "ZIP LE NUMERO 10". Ubicación : ZONE ARTISANALE, 49260 LE COUDRAY MACOUARD, Persona a contactar : SANDRA MARTIN, +352621541626
UNIVERSAL TRADER
- 49260 - LE COUDRAY MACOUARD
- +352621541626
- +32 4 87 96 49 04
- +32 4 87 96 49 05
Sábado 15 junio 2019
ETo obtain accurate separation of your sample, mobile phase, and other liquid, the perfect tool that you need is laboratory filters. An analysis of physical specifications and performance specifications is required when selecting filters. Physical specifications for laboratory filters...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
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