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solid phase extraction
A sample pretreatment microfluidic chip was described based on the principle of solid phase extraction and micro electro mechanical system technology.
      
LC-18 column was employed in solid phase extraction (SPE), 1.0 mL of hexane was adopted in liquid-liquid extraction (LLE), and the extracts were analyzed by gas chromatograph mass spectrum (GCMS) in selected ion mode.
      
Solid Phase Extraction and Spectrophotometric Determination of Silver with 2-(2-Quinolylazo)-5-Dimethylaminophenol
      
The method is based on the rapid reaction of silver(I) with QADMAP and the solid phase extraction of the colored chelate using a C18 cartridge.
      
This chelate was enriched by solid phase extraction with C18 cartridge, and the retained chelate was eluted from the cartridge using ethanol (with 1% acetic acid).
      
The radiochemical yield is about 40% (no decay corrected) and radiochemical purity more than 97% after simplified solid phase extraction.
      
Various types of solid phase extraction columns have been tested for the cleanup step in order to replace the time-consuming cleanup method found in the literature.
      
Solid phase extraction and direct HPLC separation of bilirubin and its conjugates in plasma
      
Steroid conjugates are hydrolysed enzymatically using β-glucuronidase after extraction from urine using a solid phase extraction cartridge.
      
After hydrolysis the free steroids are removed from the matrix, again utilising solid phase extraction.
      
Trace enrichment and HPLC analysis of polycyclic aromatic hydrocarbons in environmental samples, using solid phase extraction in
      
These requirements can be fulfilled by used of solid phase extraction on enrichment columns, and fluorescence or UV/VIS diode array detection.
      
Solid phase extraction and analysis of horse urine for aminocaproic acid
      
For sample preparation and preconcentration, solid phase extraction (SPE) has been employed.
      
Histamine can be determined together with the 24 amino acids within 40 min, or separately in a shorter time (less than 4 min) if a prior solid phase extraction clean-up is used.
      
The development and validation of a solid phase extraction/HPLC method for the determination of aflatoxins in groundnut meal
      
Solid phase extraction conditions for the selective isolation of drugs from biological fluids predicted using liquid chromatogra
      
A new method to predict the most suitable conditions for the solid phase extraction of 1,4-benzodiazepines and related compounds using C18 Sep-Pak carridges is proposed.
      
The solid phase extraction data given in this paper can be used by others, there by saving considerable time and effort in the development of sample preparation methods.
      
The cod-liver oil samples were prepared either in a cyano column by high performance liquid chromatography (HPLC) or by a solid phase extraction (SPE) clean-up procedure that included e.g.
      
 

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