Instrument: Liquid Waveguide Capillary Cells

Acronym: LWCC
External Identifier:

Description

Liquid Waveguide Capillary Cells (LWCC) are optical sample cells that combine an increased optical pathlength (2-500 cm) with small sample volumes. They can be connected via optical fibers to a spectrophotometer with fiber optic capabilities. Similar to optical fibers, light is confined within the (liquid) core of an LWCC by total internal reflection at the core/wall interface. Ultra-sensitive absorbance measurements can be performed in the ultraviolet (UV), visible (VIS) and near-infrared (NIR) to detect low sample concentrations in a laboratory or process control environment. According to Beer’s Law the absorbance signal is proportional to chemical concentration and light path length.


Dataset NamePI-Supplied DescriptionPI-Supplied Name
Global distribution of phosphate using high sensitivity techniques from data aggregated from many studies between 1988-2017 High sensitivity dissolved phosphate measurements done using either Liquid Waveguide Cells, magnesium induced precipitation (MAGIC), or solid phase extraction. Liquid Waveguide Cells
Ammonium (NH4) concentrations from multiple HOE-DYLAN cruises from July to September 2012 (C-MORE project)These low level nutrient measurements were made with an LWCC (not the usual autoanalyzer). The methods were developed by Susan Curless and Mariona Segura-Noguera. Liquid Waveguide Capillary Cells
Nitrite (NO2) concentrations from multiple HOE-DYLAN cruises, R/V Kilo Moana KM1215, KM1216, KM1217, KM1218, KM1219, KM1220, at Station ALOHA from July to September 2012 (C-MORE project)These low level nutrient measurements were made with an LWCC (not the usual autoanalyzer). The methods were developed by Susan Curless and Mariona Segura-Noguera. Liquid Waveguide Capillary Cells
Urea concentrations from multiple HOE-DYLAN cruises, R/V Kilo Moana KM1215, KM1217, KM1219, at Station ALOHA from July to September 2012 (C-MORE project)These low level nutrient measurements were made with an LWCC (not the usual autoanalyzer). The methods were developed by Susan Curless and Mariona Segura-Noguera. Liquid Waveguide Capillary Cells
Concentrations of particulate phosphate in seawater collected during R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in the Spring of 2019 Measurements of SRP, DOP were performed using the Liquid wave guide capillary cell (2.5 m length path, model 3250, World Precision Instrument).  Liquid wave guide capillary cell (2.5 m length path, model 3250, World Precision Instrument).
Oceanographic data from 12 monthly cruises off the Israeli coast in the east Mediterranean conducted between Feb 2018 and Jan 2019 at a continental shelf station (~140m depth) and an open-deep water station.100 cm long flow cell (LWCC) 100 cm long flow cell (LWCC)
Concentrations of soluble reactive phosphate in treatments amended with dissolved organic phosphate compounds in bioassay experiments (incubation 48h) with seawater from R/V Savannah cruise SAV-19-02 in the NW Atlantic Ocean in Spring of 2019 Measurements of SRP were performed using the Liquid wave guide capillary cell (2.5 m length path, model 3250, World Precision Instrument) and using a conventional spectrophotometer (Genesys®,10 cm cuvette). Liquid wave guide capillary cell (2.5 m length path, model 3250, World Precision Instrument)