推荐产品
product name
Supel™ QuE, PSA Tube, pk of 50, suitable for EN 15662:2008 per BS
材料
polypropylene tube
品質等級
agency
suitable for BS EN 15662:2008
產品線
Supel™
成份
magnesium sulfate, 900 mg
Supelclean™
PSA, 150 mg (Cat. No. 52738-U)
包裝
pk of 50
技術
QuEChERS: suitable
離心管體積
15 mL , Greiner Cat. No. 163270
基質活性組
PSA phase
應用
food and beverages
分離技術
normal phase
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一般說明
分散SPE法,通常也是指"QuEChERS” 方法(快速,简便,便宜,有效,耐用和安全),是一种现代样本准备技术,正在越来越多地被用在食品和农业产品多残基杀虫剂分析领域。
使用QuEChERS方法,食品/农产品样本首先在水溶性溶剂(比如乙腈),在高盐(比如氯化钠和硫酸镁)和或者缓冲试剂(比如柠檬酸盐)存在下,进行提取。高盐能够引起液相分离,而缓冲试剂能够稳定酸碱不稳定杀虫剂。 在摇晃和离心之后,有机相部分就进一步用SPE清洁。 和传统的SPE管方法不同,在分散SPE中,清洁需要混合大量的SPE(比如Supelclean PSA, ENVI-Carb, 和或者Discovery DSC-18)和提取物。 在样本清洁后,混合物经过离心,得到的上清可以直接分析,或者在分析前需要很少的处理。
Supelco有一系列的管和离心管,含有预置量的盐和SPE吸附剂,能够支持现今最常用的方法。
使用QuEChERS方法,食品/农产品样本首先在水溶性溶剂(比如乙腈),在高盐(比如氯化钠和硫酸镁)和或者缓冲试剂(比如柠檬酸盐)存在下,进行提取。高盐能够引起液相分离,而缓冲试剂能够稳定酸碱不稳定杀虫剂。 在摇晃和离心之后,有机相部分就进一步用SPE清洁。 和传统的SPE管方法不同,在分散SPE中,清洁需要混合大量的SPE(比如Supelclean PSA, ENVI-Carb, 和或者Discovery DSC-18)和提取物。 在样本清洁后,混合物经过离心,得到的上清可以直接分析,或者在分析前需要很少的处理。
Supelco有一系列的管和离心管,含有预置量的盐和SPE吸附剂,能够支持现今最常用的方法。
應用
Supel™ QuE is ideally used as an extraction tube for the clean-up procedure involved in the analysis of pesticide residues in agricultural matrices using gas-chromatography coupled to tandem mass spectrometry.
適合性
适用于脂肪、叶绿素和类胡罗卜素含量低的食品/农产品样品。在初始食品萃取和相分配之后,特别适用于净化 6mL 提取液。
法律資訊
Supel is a trademark of Sigma-Aldrich Co. LLC
Supelclean is a trademark of Sigma-Aldrich Co. LLC
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
其他客户在看
Analysis of non-cleaned QuEChERS extracts for the determination of pesticide residues in fruit, vegetables and cereals by gas chromatography-tandem mass spectrometry
Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment, 33(2), 300-312 (2016)
Journal of chromatography. A, 1217(16), 2548-2560 (2010-02-11)
This article describes the comparison of different versions of an easy, rapid and low-cost sample preparation approach for the determination of pesticide residues in fruits and vegetables by concurrent use of gas and liquid chromatography (GC and LC) coupled to
Analytica chimica acta, 827, 40-46 (2014-05-17)
A new method of sample preparation was developed and is reported for the first time. The approach combines in-vial filtration with dispersive solid-phase extraction (d-SPE) in a fast and convenient cleanup of QuEChERS (quick, easy, cheap, effective, rugged, and safe)
The Science of the total environment, 493, 162-169 (2014-06-20)
The UV filters and musk fragrances have come into focus because these compounds are contained and increasingly used not only in sunscreen products but also in many products of daily use, such as cosmetics, skin creams, plastics or varnish. In
Journal of chromatography. A, 1512, 98-106 (2017-07-20)
An analytical method using a quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure for multi-residue determination of 52 pesticides in coffee leaf extractshas been developed and validated according to SANTE/11945/2015 guidelines. Different sorbent combinations for dispersive solid phase extraction
相关内容
Solid phase extraction purifies samples for chromatographic analysis, improving data quality and protecting analytical columns.
固相萃取(SPE)是一种用在色谱分析(如 HPLC、GC、TLC 色谱)前快速、选择性制备和纯化样品的技术,主要用于置换样品基质、浓缩分析物、去除干扰成分和污染物,以改善数据结果、保护分析色谱柱。
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