Laboratory Facilities
The Paleoecology Lab at SU features a Merchantek (New Wave) MicroMill, a microsampling device that allows high-resolution sampling of accretionary biogenic materials for stable isotope analysis. A number of samples can be …
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Stable isotopes (δ18O and δ13C), trace and minor
A section of a living L. pertusa with a thick theca calcification was probed with a Merchantek MicroMill at a high spatial sampling resolution with 10 samples per 1 mm.This reduced the signal-smoothing inherent to conventional sampling. The δ 18 O ag of coral aragonite ranges between −2.0‰ and +2.8‰ VPDB and the δ 13 C ag ranges between −7.77‰ and …
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Equipment
The Merchantek MicroMill comprises a computer-controlled micro-drilling system coupled with a Leica microscope. The device was developed for high-resolution sampling in stable isotope studies. With the MicroMill it is possible to collect sample powders on a fine scale. This can be done on polished rocks and thin sections in sampling transects ...
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New Wave Research Micromill
The Thermo Scientific TRACE GC Ultra multi-channel gas chromatograph was developed for the evolving requirements of modern laboratories. With the most complete range of proprietary inlets, sensitive detection systems, smart accessories, and ancillary devices, the Ultra platform features unique technologies that raise the standards of speed, sensitivity and separation in gas …
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Linda Ivany
Merchantek (New Wave) MicroMill microsampling system JEOL NeoScope Benchtop Scanning Electron Microscope (SEM) equipped with Energy Dispersive X-Ray Spectroscopy (EDS) and JEOL Smart Coater (gold) Isomet 1000 Slow Speed Saw and trim saw
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Investigating intra-bone isotopic variations in bioapatite …
The Merchantek micromill is equipped with an automated XYZ stage control, a stereo microscope and CCD video camera. Using a combination of lines and Fig. 3. Comparison of the δ18O values obtained for the modern sheep bone samples using IR-laser ablation, micromill, bulk phosphate and bulk carbonate methods.
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Stable isotopes (δ18O and δ13C), trace and minor
We have used a Merchantek MicroMill to achieve a high sampling resolution and to avoid signal smoothing from broad-interval conventional sampling, in order to capture the full isotopic variability. Stable oxygen isotopes were measured to resolve the temperature signal of the bottom water, while stable carbon and oxygen isotopes are measured to ...
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Thomas S. Tobin +1-(813)-545-1912
• Merchantek Micromill computerized drill . Title: Work Experience Author: Tom Tobin Created Date: 8/4/2015 2:35:16 PM ...
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Te Kura Tātai Aro Whenua
New Wave/Merchantek Micromill The Micromill is used to produce milled powder samples from a range of different materials. Computer control of the milling process allows complex structures in solid materials to be micro-sampled for …
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Micromill | Bloomsbury Environmental Isotope …
The Merchantek/New Wave MicroMill The Micromill is a microsampling device designed for high resolution milling to recover sample powder from rocks, speleothems, belmenites, bivalves and corals for chemical and isotopic analysis.
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microfacility
The Micromill ; Former student Erin Rosenberg viewing a sample on the micromill . This product, which is manufactured by Merchantek-NewWave Research, is truly the state of the art in high-resolution micro sampling. The Micromill can extract materials as small as 1/4 micron. We use this instrument to recover sample power for chemical and ...
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Linear correlations in bamboo coral δ13C and δ18O
Powders for IRMS-based δ 18 O and δ 13 C analyses were drilled in a transect of approximately the same age that paralleled the outer margin of each coral (Fig. 2 c) using a Merchantek/New Wave MicroMill. Each sample integrated skeleton in a circular region ~ 250 μm in diameter and ~ 300 μm deep that yielded ~ 40 μg of powder.The entire transect was then …
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MicroMill Sampling System Operator's Manual
Products MicroMill Sampling System software. The MicroMill Sampling System is a solid sampling system that uses a drill mounted on a video microscope assembly and a set of motorized …
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Alteration of micromilled carbonate 18O during Kiel …
speed Merchantek Micromill drill (hereafter micromilled). The drill was set to 50% speed (approximately 18500rpm). Aragonite was derived from a Late Cretaceous molluscan shell which was crushed and sieved through a set of standard sized sieves, generating a sub‐32‐µm fraction. Crushed and micromilled samples from the same shell were ...
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Microanalysis Lab | Department of Anthropology
Merchantek MicroMill: A micromill was purchased with an STF grant to allow for precision microscopic drilling of various lithic and biogenic materials for isotopic, trace elemental, and radiometric analyses. This allows students to address a …
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Experimental determination of Fe isotope fractionation
Metal, sulfide and silicate fractions were separated from mounted and sectioned experimental charges using a computer-controlled micromill (New Wave-Merchantek). Sample dissolution, Fe purification and isotopic analysis followed established procedures (Williams et …
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Strong kinetic effects on Sr/Ca ratios in the calcitic …
Using a Merchantek Micromill, carbonate powder was drilled directly from the surface of the left valve of the shells. A 300 mm drill bit was used, which corresponds to a resolu-tion of 1–6 days depending on growth rates. To avoid surface contamination, the surface layer (50 mm depth) of each sample was re-moved, and the next 100 mm was sampled.
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Climate records from the Faroe-Shetland Channel using
Corals were sectioned using a slow-speed Isomet saw, and sampled for isotopic analysis using a Merchantek micromill. Observation of sectioned corals revealed dense-less dense couplets, as in every coral studied to date from tropical to deep cold-water environments worldwide. We sampled circumferentially, in the centres of individual bands, so ...
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Te Kura Tātai Aro Whenua
Micromill apparatus used for micro-sampling New Wave/Merchantek Micromill. The Micromill is used to produce milled powder samples from a range of different materials. Computer control of the milling process allows complex structures in …
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New Wave/Merchantek Micromill Profile page
Micromilling device designed for high resolution milling to recover sample powders for chemical and isotopic analysis.
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LISTSERV
Earth Science Women's Network Event - Demystifying the NERC Independent Research Fellowships: Interviews, November 24th 2022
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Stable carbon isotopic composition of Mytilus edulis …
a Merchantek MicroMill and 300 lm drill bit. Although M. edulis has both calcite and aragonite shell layers, the aragonite layer is not suitable for time resolved sampling (see Vander Putten et al., 2000). Carbonate powders were reacted in a Kiel Fig. 1. Map of the Westerschelde estuary (referred to as the Scheldt estuary in the text).
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EarthScope Student Geochronology Lab Overview UNC
obtained on the SEM can be used in conjunction with our New Wave Research/Merchantek Products MicroMill system. This system includes a video microscope mated with a high-speed drill and a computer-controlled motorized stage. With careful monitoring, we have been able to . drill samples with spot diameters and line widths as small as 30 µm. ...
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Alteration of micromilled carbonate ??18O during Kiel …
speed Merchantek Micromill drill (hereafter micromilled). The drill was set to 50% speed (approximately 18 500 rpm). Aragonite was derived from a Late Cretaceous molluscan
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GitHub
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MERCHANTEK MICOMILL | AllSurplus
You are bidding on a Merchantek Micromill. This item has not been tested. This item came from the University of Colorado Boulder and was in work. Bid on MERCHANTEK MICOMILL in our surplus auctions. Register free and start bidding today across more than 500 categories. Liquidity Services Brands ...
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(PDF) High-Precision In Situ 87 Sr/ 86 Sr Analyses through
(a) The New Wave-Merchantek Micromill device operating at the Department of Earth Sciences–University of Firenze; (b) image of a petrographic polish thick section fixed on the sample stage under ...
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Micromill – Alabama Stable Isotope Laboratory
We have two ESI (formerly Merchantek, New Wave) computer controlled micromilled for high spatial precision drilling. This equipment is primarily used to ontogenetically sample shell material.
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The second century CE Roman watermills of Barbegal
Each polished slab was micromilled at 0.2-mm intervals along four parallel and 5-mm-wide traverses perpendicular to the lamination using a Merchantek micromill (ESI New Wave). Sample powders were analyzed using a semiautomated device (GasBench II, Thermo Fisher) linked to a Thermo Fisher Delta plus XL isotope ratio mass spectrometer.
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(a) SEM imaging of a tungsten carbide drill bit used for …
One measurement on the micrometric veinlet of sample TL112 was performed by drilling the sample in situ (Di Salvo et al., 2018) with a MicroMill™ device (Merchantek-New Wave Research ...
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