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Table T4. Prioritized list of sample splits and geochemical determinations and methods used during Expedition 310.

Priority Split Volume
(mL)
Preservative Vial
Type and
concentration
Volume
(µL)
Type and size Material
1 pH, alkalinity 1.00 HCl s.p. 0.01 n Varies 2 mL Eppendorf cup Polypropylene
2 Ammonia 0.4 Direct Injection Hamilton 1 mL glass syringe
3 Anions, archive 2–5 5 mL ampule Glass
4 Cations 2–5 HNO3 s.p. 65% 100 5 mL ampule Glass
5 13C 2, no HS HgCl2 0.25 M 30 2 mL crimp cap Glass
6 Sulfide 2.00 ZnAc 50 mM 500 8 mL twist cap Glass
7 18O 8, no HS 8 mL twist cap Glass
8 DIC, archive 5 HCl 30% 100 5 mL ampule Glass
9 Archive Varies 20 mL scintillation Polypropylene

Notes: 1 = highest priority, 9 = lowest priority. DIC = dissolved inorganic carbon. HS = headspace. ZnAc = Zn(H2C3O2)2. s.p. = suprapure.

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