EFFECTS - 9032 Anuncios

Miércoles 14 agosto 2019

After years of development, the QuEChERS pretreatme nt method has been continuously improved and broadened by researchers as a simple and rapid residual pretreatment technology. The application target also has been extended from the highest moisture content of vegetables and fruits...

Miércoles 14 agosto 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...

Sábado 10 agosto 2019

Cantidad : Proofing b - Precio : 200-1500CNY

Among the large-scale use of PCI and optical modules and cable sockets, the gold fingers PCB has been divided into: long and short gold fingers, broken gold fingers, split gold fingers, gold finger plates in the process of processing, need to pull gold-plated wire, conventional gold...

Sábado 10 agosto 2019

Cantidad : 100000 - Precio : 30$

we specialize in production and selling Shower Curtains, the most Beautiful Country Bath Curtain, you can choose the long and wide of the Shower Curtain size.visit: https://www.diy-showercurtains.com This polyester fabric shower curtain is able to print colorful images with a fine...

Sábado 10 agosto 2019

Cantidad : 10000 - Precio : 1-10000 USD

The working principle of the electrostatic dust collector is to use the high voltage electric field to ionize the flue gas. The dust charge in the air flow is separated from the air flow under the action of the electric field. The negative electrode is made of metal wires with different...

Viernes 09 agosto 2019

Cantidad : 25kg - Precio : FOB Qingdao 2.4-2.9$

Description of cmc oil drilling grade cmc oil cmc drilling cmc hv & PAC CMC & polyanionic cellulose pac polyanionic cellulose can be used as fluid loss reducer or viscosifier in drilling fluids. The function of CMC is to reduce the fluid loss as much as possible through forming...

Viernes 09 agosto 2019

Cantidad : 25kg - Precio : FOB Qingdao 2.4-2.9$

Preventing re-deposition of dirt effect Adding sodium carboxymethyl cellulose in detergent has the function of preventing the re-deposition of dirt. The working principle is that negatively charged dirt granule and charged sodium carboxymethyl cellulose molecular absorbing on fabrics...

Viernes 09 agosto 2019

Precio : 1000-6000USD

6100 lumens, 1920*1200 resolution, 1.2-2.13 throw ratio laser projector DU6100 wuxga laser projector has 6100 lumens with 1920*1200 resolution. The throw ratio is adopted 1.2-2.13 zoom with the shift lens function. DU6100 has the built-in edge blending function and the 17*17 geometric...

Viernes 09 agosto 2019

- Some Tips In QuEChERS D-SPE? - Why choose anhydrous magnesium sulfate as a water remover? In the d-SPE purification process, the moisture content plays a crucial role in the purification effect of PSA. The lower the moisture content, the better the purification effect of PSA. Experiments...

Jueves 08 agosto 2019

Basic information This valve can strictly prevent the occurrence of backflow pollution, is a safe device to ensure the hygiene of drinking water. Features 1. More superior streamline design, energy - saving effect； 2. Discharge control device and outlet are designed without obstacles...

Jueves 08 agosto 2019

Basic Information This float controlled water valve the level of the water in the water tower or sink. Features 1. Stable and reliable work, large flow; 2. Disc fast open and slowly closed, no water hammer impact; 3. Good sealing effect and long service life; 4. Install at any location...

Jueves 08 agosto 2019

Most common SPE cartridges are injection syringes made of polyethylene, in which there are two plugs made of polypropylene or fiberglass, with a certain amount of chromatographic adsorbent (filler) between the two plugs. SPE cartridges without sieve plate 1. Avoid “non-specific adsorption” 2...

Miércoles 07 agosto 2019

Cantidad : 1 - Precio : 10 000,00 €

Planta trituradora de roca semi-portátil / planta trituradora móvil en venta Por ejemplo, si está buscando una trituradora de cono con ruedas, una trituradora de impacto, una trituradora de mandíbula u otra trituradora de rocas portátil, Hongxing Machinery ofrece varios planes que...

Miércoles 07 agosto 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...

Martes 06 agosto 2019

Cantidad : 100000TM - Precio : 50USD

CAS: 123-42-2 Uses of Diacetone (DAA) DAA is used as a raw material for high boiling point solvents, paint diluents, wood stains, rust removers, and dyes, etc. Diacetone boiling point is 166 °C (331 °F; 439 K). DAA is used as a dye raw material and resin solution. It can be used as...

Martes 06 agosto 2019

Cantidad : 15/ week - Precio : $150-$450/m

Beijing Palm International Group Ltd. has over 20 years of experience and are now a professional manufacturer in the good artificial plants and planting industry. We provide high quality products, and flexibility to customize artificial tree solutions to customers all at an affordable price...

Lunes 05 agosto 2019

One of the main factors affecting the life of the liquid chromatographic column is the mobile phase. There are three aspects of the mobile phase factors. The pH value of the Mobile Phase The fillers of different substrates apply to different pH value range. Under normal temperature...

Sábado 03 agosto 2019

Since July, the demand for sand and gravel has continued to rise, and the price of sand and gravel has risen linearly. Many people are optimistic about the opportunity to build a mechanism sand plant. Take the river pebble as an example. How much profit does a ton of river pebble make...

Sábado 03 agosto 2019

Cantidad : 1000TM - Precio : 50USD

CAS No. 141-32-2 Butyl acrylate is a colorless liquid insoluble in water and miscible in ethanol and ether. It is mainly used as an organic synthesis intermediate, adhesive, and emulsifier. However, it is also a dangerous product that is harmful to the body through inhalation, oral...

Jueves 01 agosto 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...

Miércoles 31 julio 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...

Martes 30 julio 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...

Martes 30 julio 2019

The extraction thimble, as its name implies, is a cylindrical element used for filtering. It is generally divided into extraction thimble for filtering gas and liquid media. Usually, we refer to the extraction thimble is mostly used to filter gas, called the air extraction thimble...

Martes 30 julio 2019

Quantitative filter paper or qualitative filter paper, it is a question. While at the very beginning, we can distinguish from the literal meaning between quantitative and qualitative. Quantitative refers to fixed quantity, more about physical properties. Qualitative refers to fixed quality...

Viernes 26 julio 2019

As we all know moisture in the house can create humidity,and this muggy air can make you uncomfortable especially on those warm summer days, the moisture in the air makes it feel much hotter than what the thermometer says.Aside from the lack of comfort, a rise in excess air moisture...

Lunes 15 julio 2019

Laboratory data show that the optimum flow rate of silica gel flash columns is decided by the length and width of columns and the property of gel. To be more specific, longer and narrower columns will provide more theoretical plates which are able to affect the flow rate. When referring...

Viernes 12 julio 2019

Hawach vacuum filtration device is a kind of equipment which uses vacuum negative pressure as a driving force to realize solid-liquid separation. In structure, the filter section extends along the horizontal length direction and can complete filtering, washing, drying, and regeneration...

Viernes 12 julio 2019

Characteristics of QuEChERS QuEChERS is a pretreatment method for pesticide residue detection. This paper refers to the products produced by our company. Its name comes from the acronyms of the words “Quick, Easy, Cheap, Effective, Rugged, Safe”, which are also the characteristics...

Miércoles 10 julio 2019

The biggest feature of filter paper is paper with good filtration performance. At present, the filter papers produced in China mainly include quantitative analysis filter paper, qualitative analysis filter paper and chromatographic qualitative analysis filter paper. Quantitative filter...

Martes 09 julio 2019

Melt-blown filter cartridges are shaped filter cartridges, which made of non-toxic and odorless polypropylene particles after heating, melting, spinning, traction. Melt-blown filter cartridges are not only used in water purification, but also have excellent chemical compatibility...