a new simple and rapid dispersive liquid-liquid microextraction has been applied to preconcentrate tracelevels of zinc as a prior step to its determination by spectrophotometric method. in the proposed method, 4-(2-pyridylazo) resorcinol (par) is used as a chelating agent, and chloroform and ethanol are selected asextraction and dispersive solvent. the optimization strategy is carried out by us...

Division of Laboratory andGenomicMedicine, Department of Pathology,WashingtonUniversity School of Medicine, St. Louis, MO. * Address correspondence to this author at: Washington University School of Medicine, 660 South Euclid Ave, St. Louis, MO. Fax 314-362-1461; [email protected]. Received October 15, 2014; accepted October 31, 2014. DOI: 10.1373/clinchem.2014.234831 © 2014 America...

background: extraction of blood genomicdnais one of the main approaches for clinical and molecular biology studies. although several methods have been developed for extraction of blood genomic dna, most of these methods consume long time and use expensive chemicals such as proteinase k and toxic organic solvent such as phenol and chloroform. the objective of this study was to developed easy and...

introduction: the healing process after surgery is a challenging issue for surgeons. various materials and techniques have been developed to facilitate this process and reduce its period. fibrin adhesives are often used in cardiothoracic and vascular surgery to seal diffuse microvascular bleeding and in general and plastic surgery to seal wound borders. this case report and literature review wi...