Analysis of Major and Trace Elements in Rocks, Sediments, and Interstitial Waters by Inductively Coupled Plasma–Atomic Emission Spectrometry (ICP-AES)

Geochemistry of surface sediments from the fjords of Northern Chilean Patagonia (44–47°S): Spatial variability and implications for paleoclimate reconstructions

“…Samples were prepared using the Li Metaborate fusion technique following Murray et al (2000), which is preferred over HF digestion because it is the only technique that allows the complete dissolution of sediment samples containing refractory minerals such as zircon (Sholkovitz, 1990;Murray et al, 2000;Huang et al, 2007). Sample preparation consisted in (δ 15 N), were measured at the UCDavis Stable Isotope Facility by continuous flow isotope ratio mass spectrometry (CF-IRMS; 20-20 SERCON mass spectrometer) after sample combustion to CO 2 and N 2 at 1000°C in an on-line elemental analyzer (PDZEuropa ANCA-GSL).…”

Factors controlling 226Ra, 228Ra and their activity ratio in groundwater – an application in Polish Carpathian mineral waters

“…Both auxiliary gas and nebulizer flow rate amounted to 1.0 L/min, water sample uptake of 0.8 mL/min. Depending on the element, the low limit detection varied from a few ppb to ppm with 3% of uncertainty (Murray et al 2000, Oliveira & Sarkis 2001). The water sample of five liters of volume was reduced to nearly one liter by evaporation at 80°C, then the radium isotopes were co-precipitated together with barium carrier as a sulfate compound.…”

Methods

“…The general method for shipboard ICP-AES analysis of samples is described in Murray et al (2000) and the user manuals for new shipboard instrumentation with modifications as indicated. Samples and standards were diluted 1:20 using 2% HNO 3 for trace element analyses (B, Mn, Fe, Sr, and Ba) and 1:200 for major element analyses (Na, K, Ca, and Mg).…”

“…Analytical protocols are summarized below. In many cases, these protocols are based on those of Gieskes et al (1991), Murray et al (2000), and the IODP user manuals for new shipboard instrumentation, with modifications as indicated. However, as described in the following subsections, in many cases the instrumentation and protocols used during Expedition 329 supersede those cited above.…”