IODP Expedition 353 Spectrophotometry

Interstitial water constitutents were measured by UV-VIS spectrometry using colorimetric methods (e.g., ammonium, nitrate, nitrite, phosphate, silica, and sulfide) by an Agilent CARY 100 UV-VIS spectrophotometer.间隙水（interstitial water）的组分采用安捷伦（Agilent）CARY 100紫外-可见分光光度计，通过紫外-可见分光光度法（UV-VIS spectrometry）结合比色法（colorimetric methods）进行检测，检测指标包括铵离子、硝酸根、亚硝酸根、磷酸根、二氧化硅及硫化物。