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Tuesday, July 30, 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...

Wednesday, July 10, 2019

According to the research from the United States Department of Agriculture, the QuEChERS meth od which extracts pesticide from foods is fast, convenient, cheap, effective and secure. When it compares to the traditional SPE method, QuEChERS not only uses less solvent but also adopts...

Friday, July 05, 2019

The product mainly includes two parts: extraction boxes and purification boxes. Extraction boxes include salt bags and 50 ml centrifugal tubes. Due to the high transportation cost of 50 ml centrifugal tubes and the general unacceptability of customer laboratories, more customers will...

Thursday, July 04, 2019

As an acronym for Quick, Easy, Cheap, Effective, Rugged and Safe, the method of QuEChERS achieves as a variety of sample preparation and clean-up techniques for the analysis of multiple pesticide residues in the field of agriculture. Originally designed for the analysis of fruits and vegetables...

Tuesday, July 02, 2019

The average sample addition recovery rate of QuEChERS method is higher than 85%, with fewer impurities interfering with the detection of the target substance, a small amount of solvent, simple and fast operation, which will be the preferred pretreatment method for routine detection...

Friday, June 28, 2019

Stationary Phase & Mobile Phase The stationary phase is used to separate the substances, which is packed into HPLC Column directly; Mobile phase is the carrier, which carries the substances into the stationary phase and goes through the stationary phase. It is gas in the vapor phase...

Monday, June 24, 2019

QuEChERS is widely used in many areas, in the case that the targeting recovery rate satisfies the need, and also the matrix background of removing impurities meets detection, it can be applied to purify stuff such as residues of food and veterinary, additives, plasticizers. However...

Thursday, June 20, 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...

Thursday, June 13, 2019

Package 1 QuEChERS extracting pesticide residues from plants Extraction box: 50 ml centrifuge tube + AOAC/EN salt pack 2 kinds of buffer salts: General buffer salt for phase-separation and pH-adjustment; Anhydrous magnesium sulfate completely separates water in the matrix from the...

Friday, June 07, 2019

QuEChERS method was originally applied to extract pesticides from fruits and vegetables. Whether under AOAC or EN stipulations, according to our products' Application and Test Report, we can see that the combination of salting out and d-SPE-purification in the initial liquid-liquid...

Wednesday, June 05, 2019

Hawach summarized the advantages of QuEChERS in eight aspects. 1. Recovery Rate QuEChERS technology has the advantage of high recovery rate. Experimental data show that the recovery rate of large quantities of polar and volatile pesticides by QuEChERS is above 85%. 2. Accuracy Laboratory...

Friday, May 31, 2019

Flash Columns Series Flash Columns produced by Hawachhas three series as follows. StarFlash Only silica gel columns are optional with another two types of standard and high-grade level which has higher purity degree and better quality than the former. PureFlash Corresponding to silica...

Saturday, April 27, 2019

Hawach Scientific Co., Ltd QuEChERS is a sample treating method, which means quick, easy, cheap, effective, rugged and safe. Our products include four types which are QuEChERS kit, QuEChERS extraction salts, QuEChERS dispersive SPE kit, QuEChERS dispersive absorbent, QuEChERS ceramic...

Thursday, February 21, 2019

Cow Wipes 1.Dairy Wipes protect profits by helping control the spread of infectious mastitis. More sanitary than rags or sponges. 2.Cow Wipes provide a set of clean, absorbent prep towels for each cow, minimizing the chance of cross-contamination in the herd. 3.Udder Wipes Provides...

Sunday, January 20, 2019

Veterinary Gamgee Gamgee is 100% cotton wool with a non-woven cover. Low adherent surface so fibers won't stick to wound. Highly absorbent and strong. Location : Block 8, Shangjing Masion, Panlongcheng Economic Development Zone, Huangpi District, 430300 Hubei, Contact : Lin Leeou...

Sunday, January 20, 2019

Cotton Wool Roll 1.Absorbent Cotton Roll,is raw cotton which has been combed to remove impurities and then bleached. The texture of cotton wool is generally very silky and soft due to the special many times carding processing. 2.The cotton wool is bleached with high temperature and...

Tuesday, November 20, 2018

Quantity : 60

Advantages of Diode Laser Hair Removal Machine: 1, 808nm diode laser enables the light to penetrate deeper into skin and is safer than other lasers because it can avoid the melanin pigment in the skin's epidermis. We can use it for permanent hair reduction of all color hairs on all 6 skin types...

Thursday, July 19, 2018

Price : 1 million to 100 mil

Oil and gas refers to a combustible, explosive and poisonous gas mixture that is comprised of various volatile hydrocarbon components letting out through evaporative emission in the process of handling and storage of diversified oil products. If discharged directly, oil gas will not...

Thursday, July 19, 2018

Price : 1 million to 100 mil

PIONEER has its own absorbent production base, which specializes in the production of various efficient absorbents and catalysts to be applied to the variable pressure absorption equipment. The production base is capable of producing 10,000 tons of absorbents each year, mainly including...

Wednesday, May 16, 2018

Quantity : 5000 Meter - Price : US $15-40 / Meter

Product Description Product Name Floating Oil Spill Containment Booms Fabric PVC/PU/Rubber< /div> Fabric Color Yellow/Orange/Customized Application Oil Spill Control Section Length 15m/20m/25m/30m Connection< /span> ASTM Connector Size Customized Design...

Wednesday, May 16, 2018

Quantity : 6000Meters - Price : US $20-70 / Meter

Product Description Silt curtains are floating barriers used in marine construction, dredging, and reclamation project to control the silt and sediment in a body of water. Silt curtains can be set up to keep construction areas in compliance and protect the environment. JXY Silt...

Monday, March 05, 2018

Quantity : 2000 rolls - Price : 0.8 - 2.5 usd per ro

Cotton Wool Roll Product Introduction Made by nature medical absorbent cotton .Packing: 1roll/blue kraft paper or polybag White, soft and high water-absorbing. No fluorescent agent, non-toxic, no stimulation, no sensitization. Also recommend cotton roll covered by other material as below...

Monday, March 05, 2018

Quantity : 2000 rolls - Price : 0.8 - 2.5 usd per ro

Cotton Wool Product Introduction Made by nature medical absorbent cotton .Packing: 1roll/blue kraft paper or polybag White, soft and high water-absorbing. No fluorescent agent, non-toxic, no stimulation, no sensitization. Also recommend cotton roll covered by other material as below...

Monday, March 05, 2018

Quantity : 2000 rolls - Price : o.8 - 2.5 USD per ro

Cotton Roll Product Introduction Made by nature medical absorbent cotton .Packing: 1roll/blue kraft paper or polybag White, soft and high water-absorbing. No fluorescent agent, non-toxic, no stimulation, no sensitization. The recommended items of the product: Cotton Wool, Cotton Roll...

Saturday, February 03, 2018

Quantity : >=100 - Price : 3,96 €

Diatomite Bath Mat are made of ancient phyto plankton (diatoms) as raw materials ,which has functions as super absorbent, antibacterial deodorant, non-slip and so on.You won't have to worry about getting your floor wet after you come out of the bathroom . Perfect bathroom partner--It...

Tuesday, December 26, 2017

Quantity : 1kg - Price : 1$-5$

CO2/Carbon Dioxide Absorbent Soda LimeTechnical Specifications Component Calcium Hydroxide : 76%-83% Sodium Hydroxide : <5%</span> Water : 12%-19% Co2 Activity >29% Co2 Absorption >140L/kg Moisture Antivity <7.5%</span> Color Indication and...

Saturday, December 02, 2017

Quantity : 30 - Price : US$2000-20000

JULONG High Recovery Rate 6 Inch Gold Dredger for Sale Product Description: Julong has been designing and building reliable and easy to operate gold separation and mining equipment for many years. This kind of small gold dredger is designed for one person to recover gold from underwater...

Saturday, October 21, 2017

Price : price differ as per

Baishun medical dressing article has been in the field of producing absorbent cotton products since 1988. Our factory located in bailu town,guannan county,lianyungang city, jiangsu province,china. We have the biggest boiler and longgest drying line to produce bleached cotton. We...

Saturday, October 21, 2017

Baishun medical dressing article has been in the field of producing absorbent cotton products since 1988. Our factory located in bailu town,guannan county,lianyungang city, jiangsu province,china. We have the biggest boiler and longgest drying line to produce bleached cotton. We...

Saturday, October 21, 2017

Baishun medical dressing article has been in the field of producing absorbent cotton products since 1988. Our factory located in bailu town,guannan county,lianyungang city, jiangsu province,china. We have the biggest boiler and longgest drying line to produce bleached cotton. We...