1. Bryce, D.W., Fernández-Romero, J.M., Luque de Castro, M.D.: Fluorimetric determination of mercury (II) based on the inhibition of the enzymatic activity of urease. Anal. Lett. 27, 867–878 (1994). doi:
10.1080/00032719408007357
2. AOAC International: AOAC 990.29-1997 Sulfite (total) in foods and beverages. Flow Injection Analysis Method (1997)
3. International Organization for Standardization: ISO 15682:2000 - Water quality - Determination of chloride by flow analysis (CFA and FIA) and photometric or potentiometric detection (2000)
4. EPA: Method 353.2, Revision 2.0: Determination of Nitrate-Nitrite Nitrogen by Automated Colorimetry. 0–14 (1993)
5. Waters: Solvent selector valve.
http://www.waters.com/waters/en_US/Solvent-Selector-Valve/nav.htm?cid=10013380&locale=en_US