Abstract: A data processing system implements receiving a first input in a spreadsheet in a spreadsheet application, detecting an indication that the first input includes first executable program code, analyzing the first executable program code to identify first references to one or more first elements of the spreadsheet in the first executable program code, requesting spreadsheet data associated with the one or more first elements of the spreadsheet from the spreadsheet application, receiving the spreadsheet data from the spreadsheet application; executing the first executable program code using the spreadsheet data referenced in the first executable program code to obtain a first program code result and causing the spreadsheet application to display the first program code result in the spreadsheet application.

Abstract: The present subject matter relates to techniques for quantitation of an unstable or breakdown product generated from a raw material, e.g., bis (3-sulfopropyl)-disulfide (SPS) in acid copper plating baths. The disclosed techniques include spiking oxidant into the copper bath solution and analyzing HPLC response to quantify the absolute value of the unstable or breakdown with accuracy and precision.