Dataset: Total alkalinity determined through experiments comparing usage of high-density polyethylene (HDPE) and borosilicate glass bottles for collection and storage of water samples collected on the GEOTRACES GP17-OCE cruise (R/V Roger Revelle RR2214)

Water samples were collected on R/V Roger Revelle cruise RR2214, the GEOTRACES GP17-OCE expedition, using the ODF CTD rosette.

125-milliliter (mL) high-density polyethylene (HDPE) oblong wide-mouth bottles certified to meet EPA performance-based standards for metals, cyanide, and fluoride (Fisher Scientific product number 05-721-147) and 250 mL borosilicate glass bottles with ground glass stoppers (Corning Inc., 1500-250) were used to collect samples from the CTD rosette. Samples were filled and poisoned with 0.04% saturated HgCl2 following best practices procedures (Dickson et al. 2007). A precise ~1% headspace was created using a pipette. Samples were stored in boxes at room temperature until analysis ~17-19 months after collection. More details can be found in Woosley et al. (submitted).

Instrumentation:
Samples were analyzed in the lab for total alkalinity using a custom-designed open cell titration with non-linear least squares fitting designed and built by the laboratory of Andrew G. Dickson (University of California, San Diego) and described in detail in Dickson et al. (2003).