Evaluation of Sample Pretreatment Procedures for the Determination of Phthalate Esters in Child Care Products and Children's Toys by Gas Chromatography / Mass Spectrometry (GCMS)
of phthalate esters in the polymer as with the CPSC (solvent extraction) method. on the analytical precision, the sample was homogenized by cryogenic milling. Replicate analyses of the. · Linearity was R2>0.99 for all of the analytes in both the full-scan and SIM modes. homogenized sample showed...
Thermography of Microsystems
to: · precise characterization of time-dependent chemical reactions and spatial distribution of the reaction. zone in falling film, glass, and silicon microreactors. · determination of heat transfer efficiency in micro heat exchange systems. · characterization of micro Peltier coolers and micro cryogenic...
IR - Benefits - Thinking Outside of the Box (.pdf)
than a non cryogenic. cooling source, cooling was not considered any further. Heating sources which utilize an open flame would. be difficult to use due to other plant administrative issues. Heating techniques from a hot air gun, electric pipe. heating blanket or water / moist pack applications were...
Iterative Taguchi Analysis: Optimizing The Austenite Content And Hardness In 52100 Steel (.pdf)
,. quenching and perhaps cryogenic cooling procedures. two thermal treatments were noted each producing. must be determined. hardness of 58-59 HRC in combination with zero. retained austenite as measured by x-ray diffraction. This paper describes an application of a Taguchi. analysis to reach an optimal...