Cat # Product Name Unit Size S-7563 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ............................................................................................................... 500 μL S-7567 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ..........................................................................................................

This paper deals with an investigation of the effect of these reactions on bacteria. Not only the common staining behavior but also certain other similarities (Fischer et al., 1949; Fischer, 1951) between intact wool and gram negative bacteria, medium degraded wool and gram variable bacteria, as well as between highly degraded wool and gram positive bacteria suggested that reversal of gram stai...

The Congo red stain has undergone several modifications since it was first used by Bennhold in 1922 in order to increase the specificity for staining amyloid. Most of the laboratories in the United States use the method of Puchtler which uses alkaline Congo red solution. Some of the variables associated with the procedure were investigated by us. Our results showed the following: (1) amyloid sh...

A fast, sensitive, and selective method for the simultaneous determination of one pair of synthetic colorants commonly found mixed in food products, Amaranth (AM) and Tartrazine (TZ), based on their adsorption and oxidation on a screen-printed electrode (SPE) is presented. The variation of peak current with pH, supporting electrolyte, adsorption time, and adsorption potential were optimized usi...

Food allergy is a public health concern in almost all over the world. Although allergic responses to food allergens vary markedly due to geographical differences, the lists of allergenic ingredients enshrined in different legislations are based on the original Codex recommendations with some regional variations. The patterns and prevalence of food allergy in Argentina -according to a survey car...