Du Søgte efter: Posestativer

Leverandør: VARIAN

Beskrivelse: PL-Wang is a 4-alkoxybenzylalcohol functionalised polystyrene, prepared from copolymerised PL-CMS, for solid phase peptide synthesis using Fmoc protection strategies and is cleaved using ~ 95% TFA. Particularly useful for solid phase synthesis of small molecules which have a carboxylic acid functional group.

Leverandør: Thermo Fisher Scientific

Beskrivelse: Thermo Scientific™ HyperSep SCX Strong Cation Exchanger SPE 96-Well Plates and Individual Wells feature a strong cation exchange sorbent for extraction of charged basic compounds. The use of SPE sample preparation can significantly enhance the robustness and reliability of many biological, pharmaceutical, forensic and environmental applications.

Leverandør: VARIAN

Beskrivelse: Bond Elut™ C18 is the most hydrophobic, bonded silica sorbent in the Bond Elut™ range. It is the most popular SPE sorbent because of its extremely retentive nature for non-polar compounds. C18 is generally regarded as having the broadest spectrum of retention among bonded silica sorbents, since it retains most organic analytes from aqueous matrices. When analysing small to intermediate molecules, Bond Elut™ C18 can be used for desalting aqueous matrices prior to ion exchange, as salts pass through the sorbent unretained.

Leverandør: Thermo Fisher Scientific

Beskrivelse: Thermo Scientific™ HyperSep Aminopropyl SPE 96-Well Plates and Individual Wells feature a polar sorbent that allows both polar and anion exchange interactions. The chemistry offers good retention of drugs, metabolites and structural isomers.

Leverandør: Thermo Fisher Scientific

Beskrivelse: Thermo Scientific™ HyperSep Silica SPE 96-Well Plates and Individual Wells feature a polar sorbent primarily used to retain analytes in non polar matrices, and can effectively separate compounds of very similar structure.

Leverandør: Thermo Fisher Scientific

Beskrivelse: The sorbent used in Thermo Scientific™ HyperSep™ Diol Plates features short alkyl chains with polar functional groups, and are ideal for the isolation of polar compounds.

Varenummer: (HYPE60300-567)

Leverandør: Thermo Fisher Scientific

Beskrivelse: Thermo Scientific™ HyperSep SAX Strong Anion Exchanger SPE 96-Well Plates and Individual Wells feature a strong anion exchange sorbent for extraction of weak acids. The use of SPE sample preparation can significantly enhance the robustness and reliability of many biological, pharmaceutical, forensic and environmental applications.

UOM: 1 * 1 Items

Tilbud

Varenummer: (40662-100MG)

Leverandør: Merck

Beskrivelse: Simazine CRM may also be used as given below: Development and validation of an ultrasonic-assisted dispersive liquid-liquid microextraction (UA-DLLME) method for sample extraction followed by gas chromatography-mass spectrometry based determination of endocrine-disrupting herbicides in the river and seawater samples. Determination of triazine pesticide residues in samples of apples pears carrots potatoes tomatoes avocado cucumber spinach bananas and oranges by modified QuEChERS and solid-phase extraction (SPE) procedures followed by liquid chromatography-photodiode array (LC-DAD) analysis. Multi-residue analysis of 67 pesticides in olive oil olives and avocado samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) to evaluate various clean-up sorbents. Quantitation of 20 pesticides in eel and shrimp samples by a scheduled multiple reaction monitoring (sMRM) method and QuEChERS with EDTA for sample extraction and purification. Analysis of 35 micropollutants including pesticides in water samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) after their solid-phase extraction. Simultaneous quantification of 58 pharmaceuticals and personal care products (PPCPs) and pesticides in water samples by solvent-based de-emulsification dispersive liquid-liquid microextraction (SD-DLLME) combined with liquid chromatography-tandem mass spectrometry (LCMS/MS).

UOM: 1 * 100 mg

Tilbud

Leverandør: VARIAN

Beskrivelse: Bond Elut™ NH₂ is a weaker anion exchanger than sorbents such as SAX (a quaternary amine sorbent that is always charged) and is therefore a better choice for retention of very strong anions, such as sulfonic acids, which may retain irreversibly on a SAX sorbent. Similar to Diol and SI sorbents, Bond Elut™ NH₂ is excellent for the separation of structural isomers.

Leverandør: VARIAN

Beskrivelse: Bond Elut™ CH is a mid-polarity sorbent that exhibits unique selectivities for certain analytes. When employed as a non-polar sorbent, CH has the approximate polarity of a C₂ sorbent. Bond Elut™ CH is often a good choice when non-polar sorbents such as C₁₈, C₈ or C₂ do not provide the desired selectivity.

Leverandør: Thermo Fisher Scientific

Beskrivelse: A polar sorbent primarily used to retain analytes in non-polar matrices.

Certifikater

Leverandør: Thermo Fisher Scientific

Beskrivelse: Strong anion exchange sorbent for extraction of weak acids.

Leverandør: VARIAN

Beskrivelse: A medium polarity sorbent with many uses, Bond Elut™ CN-E is ideal for applications in which extremely non-polar compounds would be irreversibly retained on high carbon load sorbents such as C₈ and C₁₈. This endcapped version of the cyano sorbent is best utilised when extracting analytes from an aqueous matrix.

Leverandør: Thermo Fisher Scientific

Beskrivelse: A polar sorbent for both polar and anion exchange interactions.

Leverandør: Restek

Beskrivelse: QuEChERS dSPE tubes are used for extract cleanup. It is fast, simple sample Prep for multiresidue pesticide analysis. It has a advantage that no glassware required and it is ready to use. It can be individually labelled for easy sorbent identification and the tubes are preweighed with ultra pure sorbents.

Leverandør: Thermo Fisher Scientific

Beskrivelse: Solid phase extraction cartridges with medium polarity sorbent, ideal for the isolation of polar compounds from non polar matrices.