The Reason of Poor Sample Recovery When Using SPE
Quantity : 1 Price : 1,00 €
Solid-phase extraction (SPE) is a useful method of sample preparation. By sorting onto a disposable solid-phase cartridge, it can concentrate and purify analytes from solution. But sometimes, the results are unsatisfied with the poor and non-repeatable sample recovery. To avoid it, we'd better find out the reason.
First, wrong sorbent bed. According to the working principle of SPE, we must choose the sorbent bed fully retained with the analyte of interest. Poor recoveries will be found when the sample is leaching during load and wash.
Second, wrong wash solvent. The past experience has fully proved that, only if the wash solvent is strong enough, the most interference can be removed without eluting any sample.
Third, wrong elution solvent. We must make sure that the eluting solvent we choose is strong enough to elute 100% of the sample, as while as weak enough to leave more interfering contaminants on the SPE column.
Perfect balance of the three parameters: the sorbent, the wash solvent, and the elution solvent, will help us achieve the best sample recovery from solution.
Contact : Bruce Lu, +86 29 89284429
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of The Reason of Poor Sample Recovery When Using SPE Search in a category : Everything else / Bulk Search in a category : poor, reason, sample, recovery |
EC1V 2NX ClothesReport abuse
Friday, March 08, 2013
Quantity : 10 - Price : 80,00 €
Origin: China Model Number: V211141 Brand Name: Anilutum Feature: Gender: Men's Material: Style: long-sleeved shirt Online: 9AP-5PM Anilutum Brand Slim Solid Color Long-sleeved Shirt V211141 Aoniludan Anilutum for the British men's top business brand in 2003 from Guangzhou Ming...
H&Y International Fashion Limited
- anilutum
- EC1V 2NX - London
- +86 13724036041
5000 FoodReport abuse
Saturday, February 20, 2016
Quantity : 100 MT PER - Price : 2000 usd per mt CIF
Hemp seeds Product Name: Hemp seed extract Latin Name: Cannabis sativa L Appearance: Brown yellow powder Part used: Seed Application: Health-care products Shelf Life: 24(month) Name Hemp Seed Botanical source Cannabis sativa L. Specification 3.5mm belwo,3.5-5.0mm...
Khun Jack Partnership Ltd
- 5000 - Chaing Mai
- +66 9 68 75 20 43
30410 FoodReport abuse
Thursday, October 08, 2015
Quantity : Mini 24T - Price : 355 à 618 Euros/Tonn
PRESTIGE FORCE Complete food flaked in addition to volume ration for horses and ponies Sport in intense and medium work. Amount of 0.5 - 1.5 kg feed per 100 Kg of weight, depending on the age, size and activity of the horse. Allocate at least 3 daily rations, in addition to good...
Agrofood Ganados
- 30410 - Murcia
- +34 9 68 10 66 28
- +34 6 72 36 35 29
