RECOVERY - 1485 Anuncios

Tuesday 17 September 2019

Cantidad : 100000pcs/ - Precio : 1.5~4800 USD

Dongjin 2V series are valve-regulated, non-spillable types constructed with an absorbent glass mat (AGM ) with pasted flat lead-calcium alloy plates. They are designed to provide long, reliable service life without maintenance. The very large batteries are all of 2V voltage and the...

Monday 16 September 2019

The extraction is divided into liquid phase extraction (LLE) and solid phase extraction (SPE). SPE technology is a column chromatography separation process. The technology is a combination of liquid-solid extraction and column liquid chromatography. The combination of this technology...

Friday 13 September 2019

Some samples (such as avocado, peanuts, olive oil, etc.) contain more fat. Due to the limited solubility of fat in acetonitrile, the recovery rate of some fat-soluble pesticides (such as HCB, DDT, etc.) is reduced. How to overcome the low experimental results caused by fat? You can...

Thursday 12 September 2019

Cantidad : 300pcs/MOQ - Precio : 1.5-10usd

As your baby begins rolling over and starts their trip on learning how to crawl, ,you want a protected and smooth area for them. Learning how to crawl on hardwood floors or ordinary rugs is not ideal; your baby would possibly get a rash or harm themselves. As they are no longer fully...

Tuesday 10 September 2019

1. Advantages and disadvantages of commonly used extraction solvents Acetonitrile: easy to salt out; compatible with LC/MS; difficult to concentrate Acetone: not easy to salt out; easy to volatilize, concentrate Ethyl acetate: immiscible with water; less extraction of impurities;...

Monday 09 September 2019

A commercial deck oven is a crucial piece of baking equipment when seeking to attain a beautiful, crusty loaf of bread. Having a quality deck oven is just as necessary for a bread bakery as heavy duty spiral mixer. While these ovens tend to take up more real estate in a bakery and...

Monday 09 September 2019

A commercial deck oven is a crucial piece of baking equipment when seeking to attain a beautiful, crusty loaf of bread. Having a quality deck oven is just as necessary for a bread bakery as heavy duty spiral mixer. While these ovens tend to take up more real estate in a bakery and...

Wednesday 04 September 2019

In the past decade, the global cosmetic market has shown a tough and stable growth, and there was no stagnant or negative growth in one year. Even though the growth slowed down in the crisis year of 2008-2009, it quickly returned to the historical normal growth level in the recovery...

Wednesday 04 September 2019

In the past decade, the global cosmetic market has shown a tough and stable growth, and there was no stagnant or negative growth in one year. Even though the growth slowed down in the crisis year of 2008-2009, it quickly returned to the historical normal growth level in the recovery...

Wednesday 04 September 2019

In the past decade, the global cosmetic market has shown a tough and stable growth, and there was no stagnant or negative growth in one year. Even though the growth slowed down in the crisis year of 2008-2009, it quickly returned to the historical normal growth level in the recovery...

Wednesday 04 September 2019

In the past decade, the global cosmetic market has shown a tough and stable growth, and there was no stagnant or negative growth in one year. Even though the growth slowed down in the crisis year of 2008-2009, it quickly returned to the historical normal growth level in the recovery...

Saturday 17 August 2019

Liquid filter housings, as a kind of indispensable device for conveying medium pipeline, can make the contaminated liquid to achieve a certain degree of cleanliness requiring by production and living. - Features of liquid filter housings: - 1. Easy installation and connection, simplified...

Friday 16 August 2019

The membrane filters of different materials have different characteristics. Here are as follows: - Nylon (NY) Material - Features: hydrophilic, resistant to some organic materials, not strong acid, protein binding capacity is high, so it is not suitable for protein recovery. Application...

Wednesday 14 August 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...

Tuesday 13 August 2019

Syringe filter is suitable for filtering a small number of samples in the laboratory because of its low adsorbability. The low adsorbability ensures a large amount of recovery of small or high-value samples. The shell of the filter will not pollute the samples. It has stable quality...

Monday 12 August 2019

The rapid chromatographic method is a technology widely used in the separation and purification of active target compounds, such as organic compounds, natural products, and biological macromolecules. Rapid chromatographic method has the advantages of easy-operation, low-price, and fast-analysis...

Saturday 10 August 2019

Cantidad : Proofing b - Precio : 200-1500CNY

Hard Gold PCB, immersion gold pcb, is to immerse the board in the plating tank and apply current to form a nickel-gold coating on the copper foil surface of the board. The electro-nickel gold is characterized by high hardness, wear resistance and oxidation resistance. Widely used in applications...

Friday 09 August 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...

Thursday 08 August 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...

Thursday 01 August 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...

Tuesday 30 July 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...

Friday 26 July 2019

Indoor humidity produced by human activity(showering, cooking, perspiring, and even breathing) can build up to very high level, it does more than make us uncomfortable. This can encourage the growth of organisms harmful to our health, and over time, it`s bad for the structure and furnishings...

Friday 26 July 2019

Thenow residential ceiling mounted energy recovery ventilator-HEPA Series added HEPA filters after G3 or F7 filter which can prevent the fine particles high efficiently. We have a completely range of energy recovery ventilation systems offering different levels of air flows and filters...

Friday 26 July 2019

Constant fresh air in your home is an important aspect to maintain the indoor air quality. A good ventilation system will protect your family from unpleasant odos and harmful contaminants such as formaldehyde and VOCs. Opening window is a simply way to increase ventilation, it can...

Friday 26 July 2019

Thenow standing ductless energy recovery ventilator with ESP Syetem-CF Series has two types air supply mode,they are straight blow and pipe blow. 550CMH and 1000CMH air flows are available now. Features of Floor Standing Ductless ERV With ESP System LCD control with touch screen...

Friday 26 July 2019

Nowadays, the standards of people's living are improving, not only to install air-conditioning, floor heating, and better-conditioned homes,but also to install ventilator, dehumidification and other equipment. A person with insights who is more environmentally conscious, and also...

Monday 15 July 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...

Monday 15 July 2019

String wound filter cartridges adopt the most advanced design of inner and outer density, which can increase the impurity and prolong the service life by 20 ~ 40% compared with the traditional life. The surface of string wound filter cartridges is treated with anti-wool treatment...

Monday 08 July 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...

Monday 08 July 2019

People should face are a lot of problems when using SPE cartridges. As a consequence, we will talk about why the cartridge has a low recovery rate in the experiments. The first reason for the low recovery rate is that the target object does not remain sufficiently on the fillers....