Detection of blood on clothing laundered with Sodium percarbonate (cas 15630-89-4)

Add time:08/31/2019    Source:sciencedirect.com

Laundering clothes with modern detergents containing sodium percarbonate can result in false negative results when certain presumptive and confirmatory tests are used to detect the presence of blood. This is problematic as blood evidence can be inadvertently overlooked and criminal activity concealed, simply by laundering bloodstained clothes in detergent. The aim of this research was to determine if the incidence of positive results using tetramethylbenzidine (TMB) reagent, luminol, Bluestar® Magnum, ABAcard® Hematrace® and RSID™-Blood was affected by treatment in hot and cold water, with and without the detergent, sodium percarbonate. This study identified that RSID-Blood consistently produced positive results irrespective of water temperature or the addition of sodium percarbonate. All other reagents returned positive results in the absence of sodium percarbonate, regardless of water temperature. The introduction of sodium percarbonate initiated negative results regardless of water temperature when testing with tetramethylbenzidine reagent, Bluestar® Magnum and ABAcard® Hematrace®. Luminol in the presence of sodium percarbonate responded differently to the temperature change of the water. Cold water returned positive results, however, hot water returned negative results. This research indicates that RSID™ - Blood surpassed other blood screening tests identifying blood on sodium percarbonate treated cotton fabric. The results for luminol were varied depending on water temperature, however, luminol performed better as a presumptive test than TMB or Bluestar® Magnum.

We also recommend Trading Suppliers and Manufacturers of Sodium percarbonate (cas 15630-89-4). Pls Click Website Link as below: cas 15630-89-4 suppliers

Prev:CO-ethylene copolymerization reactions in different reaction media catalyzed by palladium(II) complexes with chelating diphosphines bearing ortho-methoxy-substituted aryl groups
Next:A metal-free protonated g-C3N4 as an effective Sodium percarbonate (cas 15630-89-4) activator at ambient pH conditions: Efficiency, stability and mechanism)