PRINCIPLE - 4376 Annonces
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
Mercredi 31 juillet 2019
- The Selection Principle of Silica Gel Column - Commonly, the maximum sample loading volume of a silica gel column is about 1/20 of the volume of the column's silica gel. However, as a practical matter, specific sample loading volume should be decided by each constituent's degree...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 31 juillet 2019
Bag filter housings are multi-purpose filter equipment with the features of novel structure, small size, simple and flexible operation, energy saving, high efficiency, airtight work and strong adaptability. Otherwise, they are very convenient to replace the filter bags and there is...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
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
Lundi 15 juillet 2019
The solid phase extraction cartridges (SPE column, or Solid Phase Extraction Cartridges, or SPE cartridges for short) is a sample pretreatment device for extraction, separation and concentration developed from a chromatography column. Mainly used in sample pretreatment of various foods...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Samedi 13 juillet 2019
Use high temperature resistant low-temperature magnetic drive pump or a leak-free high and low-temperature shield-driven pump, reduce the risk of system leakage. At the same time, the screw water chiller system has the advantages of low noise and big traffic flow. Typical application...
Wuxi Guanya Refrigeration technology co., ltd
- 214115 - Wuxi
- 0510 82303782
Vendredi 12 juillet 2019
Today, Hawach want to talk about the pre-treatment process for pesticide residue detection from the perspective of food safety – QuEChERS, and also tell you how to pre-treat pesticide residue food. Introduction The present analytical methods and determining techniques, pre-treatment...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Jeudi 11 juillet 2019
First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 10 juillet 2019
Cellulose extraction thimbles are widely used in Soxhlet extractors. Soxhlet extraction is a widely used technology to analyze lipids or pesticides in food and soil materials and others. Soxhlet extraction is the continuous extraction of the required components in the solid mixture...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 09 juillet 2019
The cleaning of sample vial is very important. Usually, according to the principle of glass instrument washing and the degree of pollution to choose cleaning methods, there is no fixed mode. The specific methods are as follows: Method one: 1. Dry the sample in the sample vial. 2...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mardi 09 juillet 2019
First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Lundi 08 juillet 2019
QuEChERS is a pretreatment that has the characteristics of Quick、Easy、Cheap、Effective、Rugged and Safe, which is the reason why it is becoming more and more popular in the new testing methods. It was developed by Professor Anastassiades in 2003, which was used in agricultural testing at first...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Dimanche 07 juillet 2019
Microcomputer control, cascade temperature controller, digital temperature display, the regulation of unit 0.1℃, inside the temperature range -20 ℃ ~ -125 ℃ adjustable. Multi-safety protection, more reliable operation. France TECUMSEH compressor, Germany DANFOSS compressor, EMERSON compressor...
Wuxi Guanya Refrigeration technology co., ltd
- 214115 - Wuxi
- 0510 82303782
Jeudi 04 juillet 2019
- Basic information - - Flanged concentric butterfly valve is used in various service and drain lines as truncation and regulating equipment. - - Features - - 1. Bidirectional sealing, no flow direction of the medium; 2. Valve body vulcanized EPDM, reliable sealing; 3. A dial...
ZhengFeng Valve Group
- 200080 - shanghai
- 86 21 39597277
Jeudi 04 juillet 2019
Prix : US $1 - 3,000 / Set
Basic information The double orifice air release valve is a pipeline will be matched equipment, apply to the temperature does not exceed 100 water, hot water pipe on the pipe from the air. Features 1. Body is provided with a shock-proof inner tube to protect the float 2. Lower...
ZhengFeng Valve Group
- 200080 - shanghai
- 86 21 39597277
Jeudi 04 juillet 2019
Prix : US $1 - 3,000 / Set
The bronze balancing valve is required to maintain the flow of these or end equipment at all times within the working differential pressure range. As the system pressure fluctuates, the valve will automatically move up and down to change the opening, thus keeping the pipeline flow constant...
ZhengFeng Valve Group
- 200080 - shanghai
- 86 21 39597277
Lundi 01 juillet 2019
After selecting the type of SPE cartridges, we have to determine the specifications of the SPE cartridge. The principle of selecting the SPE cartridge specification is to first ensure that the SPE cartridge packing has sufficient capacity to retain the target compound 100% on the column...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Lundi 24 juin 2019
Low-power Liquid Level Sensor With 3.3-5V Output Low power Liquid Level Gauge, it was design for internet of thing specially, its low power consumption is suitable to power by battery and Periodic supply,can be used to measure liquid level for fire protection water net, heating system...
Shanghai Xuyan Precision Technology Co., Ltd.
- 201306 - shanghai
- +86 215 9241315
Lundi 24 juin 2019
Lightning Protection Hydraulic Liquid Level Transmitter & Gauge Lightning protection liquid level Sensor,can be used to measure liquid level for Reservoirs, river, sewage treatment, urban water supply, water tank, ocean level and others field need liquid level measurement. Typical...
Shanghai Xuyan Precision Technology Co., Ltd.
- 201306 - shanghai
- +86 215 9241315
Lundi 24 juin 2019
Vacuum filtrations are based on the principle that oil and water vaporization temperature is different (water vaporization temperature is lower than oil vaporization temperature) under the same pressure. Vacuum filtrations are a kind of paper filter equipment with the features of...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Dimanche 23 juin 2019
Single-pulse bag filter is widely used in mining, electric furnace smelting, machinery manufacturing, chemical products, cement, building materials, grain processing and other industrial and mining enterprises warehouse top, bottom, belt transmission and local dust source dust. It...
HEBEIOUTAI ENVIRONMENTAL PROTECTION EQUIPMENT CO.,LTD
- 062150 - cangzhou
- 0317 8288592
Dimanche 23 juin 2019
PPC type airbag pulse bag filter is a new product introduced by the American Fule Company. This type of dust remover can be widely used in glass installation, warehouse roof, cooked cooling machine and mill dust collection system in cement plants. Reverse air baghouse working principle...
HEBEIOUTAI ENVIRONMENTAL PROTECTION EQUIPMENT CO.,LTD
- 062150 - cangzhou
- 0317 8288592
Dimanche 23 juin 2019
Dust collector accessory kit include cloth bag for bag filter, skeleton (bag cage), electromagnetic pulse valve, pulse controller, star-type unloading valve, etc., anode plate for electrostatic Dust collector, barbed wire, cathode and anode rapping, porcelain bottle, porcelain Shaft...
HEBEIOUTAI ENVIRONMENTAL PROTECTION EQUIPMENT CO.,LTD
- 062150 - cangzhou
- 0317 8288592
Jeudi 20 juin 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
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 19 juin 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
Mardi 18 juin 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
Mardi 18 juin 2019
High and low temperature impact thermal shock chamber for sale is a necessary test equipment of material such as metal, plastic, rubber, electronics and so on, used for testing material structure or composite material. It can figure out the tolerance degree in the instantaneous continuous...
Wuxi Guanya Refrigeration technology co., ltd
- 214115 - Wuxi
- 0510 82303782
Samedi 15 juin 2019
With the development automation technology, automatic welding technology is more advanced. Automatic welding machine plays an important role in the application of various industries, and its application is expanding rapidly. In the modern industrial production, the mechanization and...
DONGGUAN YIHEDA AUTOMATION CO.,LTD.
- 523925 - dongguan
- 769 82886777 676
Jeudi 13 juin 2019
A. Cellulose Extraction Thimbles 1. 60% high purity grade polar fiber+40% refined cotton fiber no any binding agents which make it has stronger mechanical strength and stronger retention 2. 6 wall thickness optional to meet different retention and wet strength, dry strength increasing...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Mercredi 12 juin 2019
- STANDING MAT 1#: - Humans did not evolve on a completely flat surface. Our feet, like our bodies, are meant to move. Therefore, our company has developed a standing mat that conforms to the terrain, stand mat 1#. The unique peaks and troughs will make you more willing to move around...
Shaoxing Yunna trading Co,.ltd
- 312400 - shaoxing
- +86 13735208020