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solid phase extraction
A highly selective solid phase extraction sorbent for pre-concentration of sameridine made by molecular imprinting
      
A novel approach to solid phase extraction, based on the use of a highly selective molecularly imprinted polymer, is presented.
      
The versatility of this type of sorbent for solid phase extraction was demonstrated in a model batch-wise pre-concentration of sameridine prior to gas chromatography.
      
Plasma samples containing amphotericin B were collected by solid phase extraction using C2 cartridges.
      
The 5-HNMP and 2-HMSI were purified from plasma by C8 solid phase extraction, derivatised by bistrimethylsilyl trifluoroacetamid, and analysed by gas chromatography with mass spectrometric detection.
      
Furthermore, liquid-liquid extraction is preferable to solid phase extraction for quantitation of verapamil and norverapamil in tissues because it is simpler, more versatile, more precise, more accurate and less expensive.
      
A special solid phase extraction, (SPE) methodology for leucotriene metabolite stability was developed which increased the recoveries and eliminates the contamination risk of biological samples.
      
Solid phase extraction (SPE) methods are studied for the sample pretreatment for HPLC analysis ofTaxus cell suspension cultures.
      
Determination of alkyl, chloro and mononitrophenols in water by sample-acetylation and automatic on-line solid phase extraction-
      
On-line solid phase extraction-gas chromatographymass spectrometry has been used for trace analysis of phenols in water samples at the low ng L-1 level.
      
PAHs were concentrated from water samples by solid phase extraction.
      
Sediment samples were extracted with acetone in an ultrasonic bath then cleaned by solid phase extraction.
      
Solid phase extraction (SPE) was used for the sample preparation.
      
The diluted samples were first concentrated by solid phase extraction.
      
For the sample preparation of the milk samples we used solid phase extraction.
      
The method includes enrichment of the compounds by solid phase extraction on graphitized carbon black, followed by sequential elution of the base/neutral and acidic pesticides.
      
The method uses solid phase extraction (SPE) of the samples and has good sensitivity, precision and accuracy.
      
The soil extracts were cleaned up and concentrated using two solid phase extraction columns: a polymeric stationary phase based on a polystyrene-divinylbenzene resin (Lichrolut EN) and alumina.
      
Thirty-five samples of German beers were analyzed: OTA was extracted with toluene and purified by solid phase extraction using silica cartridges.
      
Analysis of doxorubicin in cell culture media and human plasma using solid phase extraction and HPLC
      
 

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