ANALYTICAL - 247 Anuncios

Viernes 12 julio 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...

Jueves 11 julio 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Jueves 11 julio 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Martes 09 julio 2019

The reversed-phase HPLC columns may be repeatedly injected into a sample containing a strongly retained material, and in particular, the sorbent components such as large molecular weight or hydrophobic biological flow proteins and strong alkaline substances may be adsorbed on the silica medium...

Lunes 08 julio 2019

HPLC is the separation of sample components between the column packing and the mobile phase for mass exchange. Therefore, the mobile phase is required to have the following characteristics: a. the flow relative to the sample has a certain solubility, to ensure that the sample components...

Jueves 04 julio 2019

Manufactured from the same raw materials as the ashless grades, the qualitative filter paper is suited for ordinary filtration when we need to determine materials by using qualitative analytical techniques in the lab, with the features of fast flow rate due to their structure. Qualitative...

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...

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...

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...

Martes 11 junio 2019

Solid phase extraction (SPE) is a separation process by which compound that is dissolved or suspended in a liquid mixture, thereby being separated from other compounds in the mixture according to their physical and chemical properties. There are 4 general functions as below: 1.Matrix...

Miércoles 05 junio 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...

Viernes 27 octubre 2017

Building material combustion calorific value calorimeter Mainly used for the detection of stone, wood, concrete, evenly dispersed mineral wool and polymers and other building materials, the determination of calorific value of fuels, used in building research and technical supervision...

Sábado 14 octubre 2017

Cantidad : MOQ 5 TONS - Precio : USD 1760 PER TON

Quick Details Classification: Ammonium Organic Salt CAS No.: 6009-70-7 Other Names: NO MF: CH3COONH4 EINECS No.: 214-202-3 Place of Origin: China (Mainland) Purity: 99.6% MIN Appearance: White Crystal Application: Used for safety explosive , analytical reagent and organic synthesis...

Martes 15 agosto 2017

Cantidad : 100 - Precio : 1,00 €

La chromatographie en phase gazeuse (GC) est une technique analytique pour une grande variété d'identification et de quantification des composés organiques volatils et / ou semi-volatils. C'est une technique indispensable pour le laboratoire d'analyse pour analyser une variété de...

Viernes 14 abril 2017

Cantidad : 2 MT

Name: Yttrium chloride anhydrous CAS: 10361-92-9 Molecular formula: YCl3 Specifications: YCl3 / RECl3: > 99%, Yttrium chloride products accounted for the content of rare earth chloride> 99%, H2O <0.5%</p> Packing: 5kg / bag vacuum packaging, topical iron drum 50kg / barrel...

Sábado 04 marzo 2017

Tige de carbure de silicium est faite de carbure de silicium hexagonal verte de haute pureté comme matière première principale, selon un certain ratio de blancs de traitement, la 2200 ℃ haute température silicification recristallisation frittage et fait de tige en forme de tube,...

Sábado 04 marzo 2017

Tige de carbure de silicium est faite de carbure de silicium hexagonal verte de haute pureté comme matière première principale, selon un certain ratio de blancs de traitement, la 2200 ℃ haute température silicification recristallisation frittage et fait de tige en forme de tube,...

Sábado 04 marzo 2017

Tige de carbure de silicium est faite de carbure de siliconium hexagonal verte dehautepuretécommematièrepremièreprincin cale，selon un certain ratio de blancs de traitement，la 2200℃hautetempératuresilicificationrecri stallisation frittage et fait de tige en forme de tube，àhautetempératurenonmétalli...

Sábado 04 marzo 2017

Tige de carbure de silicium est faite de carbure de silicium hexagonal verte de hautepuretécommematièrepremièreprincipal e，selon un certain ratio de blancs de traitement，la 2200℃hautetempératuresilicification recristallisation frittage et fait de tige en forme de tube，àhautetempérature...

Sábado 07 mayo 2016

- Quick Details - - CAS No.: 7783-6-4 - Other Names: Hydrosulfuric acid, Hydrothionic acid, Sulfhydric acid - MF: H2S - EINECS No.: 231-977-3 - Place of Origin: Sichuan, China (Mainland) - Grade Standard: Industrial Grade - Purity: 99.999%, 99.999% - Appearance: Colorless...

Jueves 28 enero 2016

Product Name: SHMP Specifications: 68.0% Product Category: Sodium Salt Sodium Hexametaphosphate(SHMP) 1.Specification: Specifications Industrial Grade Food Grade Total phosphate, as P2O5%≥ 68.0 68.0 Inactive phosphate, as P2O5%≤ 7.5 7.5 Iron, as Fe %≤ 0.05 0...

Martes 17 noviembre 2015

AC single phase 2 stage filter/EMI filter AC single phase 2 stage filer/EMI filter, EMC filter, AC filter, AC single phase filter, Electromagnetic filter Features and Application of AC single phase 2 stage filter 1.High security and reliability,high performance filters 2.Excellent...

Martes 17 noviembre 2015

AC single phase 3 stage filter/EMI filter, EMC filter, AC filter, AC single phase filter, Electromagnetic filter Features and Application of AC single phase 2 stage filter 1.High security and reliability, high performace filters 2.Good performance of suppressing common mode and...

Viernes 11 septiembre 2015

Cantidad : 1 - Precio : 1,00 €

Esto es de alta calidad de las cartas marcadas de contacto lente, ya que estas tarjetas UV marcados son de alta calidad de la tinta y hechos por máquina de la marca más hábil y trabajadores. esta nueva tinta UV marcó tarjetas son más calidad mejor que las tarjetas de tinta UV viejo marcados...

Viernes 11 septiembre 2015

Cantidad : 1 unit - Precio : 1 USD

descripción Es un duplicado de la llave del coche de la marca de la cámara Porsche, puede utilizarlo para ayudar a operar con analizador de poker. Se puede utilizar para todas las generaciones de smoothsayer póquer y los escáneres de póquer. A Función: Hay una lente dentro de la...

Jueves 13 agosto 2015

Cantidad : 1 - Precio : USD300

FA-B Analytical Balance   Features: - Electromagnetic balance sensor - External calibration weight. - Automatic Calibration System. - Whole taring. - 4-level shockproof. - Counting function - Adopting large blue backlighting LCD screen (120*55 mm), which has complete display functions...

Martes 06 enero 2015

Cantidad : 1 - Precio : 1,00 €

Este es un último modelo de teléfono móvil iPhone, es iPhone 6, es muy, muy popular en el mundo, pero ahora ya tenemos iPhone 6 cámara del teléfono móvil, aunque es copia iPhone 6, y tiene todas las funciones del iPhone 6 . Esta es una cámara para el analizador de póquer, la distancia...

Domingo 04 enero 2015

Cantidad : 1 - Precio : 1,00 €

Estos son nuestros nuevos Un grado lentes de contacto UV y nuevas grado B lentes de contacto UV para la parte trasera de tinta UV marcado cartas de póquer de juego. Ellos son de primera calidad de los nuevos lentes de contacto, que son de color rojo claro, unos 10 mm de tamaño. Ellos...

Domingo 04 enero 2015

Cantidad : 1 - Precio : 1,00 €

como para las lentes de contacto UV, que son capaces de ver de tinta UV marcados tarjetas de plástico, mahjong tinta UV, tinta UV marcado plástico jugando a las cartas de póquer, vasos, sobres pintados, dominó marcado, marcan las tarjetas de papel y así sucesivamente. Palillos Ahora...

Domingo 04 enero 2015

Cantidad : 1 - Precio : 1,00 €

Esto es nuevo auricular bluetooth, pero es miro-auricular inalámbrico con bluetooth. Es pequeño transmisor y el pequeño auricular, para que pueda llevar con usted a todas partes. Auriculares Bluetooth se pueden utilizar para el teléfono móvil, sólo tiene que girar el transmisor...