Sulfonephthalein pH indicator dyes have historically been noted for impurities originating from the synthesis process which lead to batch to batch differences in pH measurements. Uncertainties up to 0.1 pH units have been attributed to impurities in these reagents.

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2014

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2013

This database is the product of a multi-year, comprehensive evaluation and expansion of the world's most widely used mass spectral reference library.

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2012

This resource consists of methods for matrix-assisted laser desorption ionization (MALDI) mass spectrometry on a wide variety of synthetic polymers. The methods are taken from the peer-review scientific literature. The database covers the period from 1988, the year of Tanaka's first paper on the subject, through 2011. Each recipe comes with a literature citation and associated digital object identifier (DOI) when available. The database currently contains entries for over 1250 polymer/matrix combinations.

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2011

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2010

The Economic Development Administration's annual report to Congress documenting EDA's efforts to fulfil its mission of leading the federal economic development agenda in the fiscal year 2009

The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.