MacroRAM™ Affordable Benchtop Raman Spectrometer - HORIBA
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MacroRAM™

MacroRAM Affordable Benchtop Raman Spectrometer
MacroRAM Benchtop Raman Spectrometer Video
How to set up your MarcoRAM
Spectroscopy on 60 seconds--MacroRAM Accessories and Probes
KnowItAll: Raman Spectral Searching LabSpec 6 Video

Affordable Benchtop Raman Spectrometer

MacroRAM™ is an easy-to-use macro Raman spectrometer for fast and reliable Raman analysis. Perfect for bulk analysis of solids, liquid solutions, powders, and gels, MacroRAM provides the flexibility and sensitivity to handle virtually any type of sample. With a compact and robust design including Class 1* laser safety, MacroRAM is ideal for use in most environments, from undergraduate teaching labs to industrial QC and manufacturing.

Powered by the industry-leading LabSpec 6 spectroscopy suite software, MacroRAM brings simplicity to macro Raman spectroscopy without compromising the ability to handle even the most challenging applications. It is ideal for confirming the identity and quality control of incoming raw materials, as well as for analyzing chemical composition, process monitoring, and assessing unknown substances. MacroRAM's durability and fixed internal setup ensure consistent and reproducible results over time, making it a reliable and robust choice for researchers, scientists, and industry professionals across such disciplines as pharmaceuticals, polymers & microplastics, forensics, wet chemistry, gemology, and other industries.

To facilitate the use of the MacroRAM in the undergraduate teaching laboratory setting, a series of educational labs are available. Designed to teach some of the most important concepts in Raman spectroscopy, such as identification, quantification, and vibrational chemistry, these educational labs can be used as is or tailored to fit the needs of any undergraduate laboratory. To learn more about these labs, please visit MacroRAM Educational Labs

Segmento: Scientific
Fabricante: HORIBA Scientific

Download this macro Raman spectroscopy poster to hang in your lab

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Featured Videos

MacroRAM Benchtop Raman Spectrometer Video

How To Set Up Your MacroRAM from HORIBA Video

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    Spectroscopy in 60 Seconds - MacroRAM Accessories and Probes Video

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      Spectroscopy in 60 Seconds - KnowItAll HORIBA Edition Video

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        Raman – it’s not just for experts anymore!

        No one has more experience in designing and manufacturing high quality Raman systems than HORIBA, from modular Raman microscopes to triple Raman spectrometers. The MacroRAM extends HORIBA’s Raman offerings to a bench-top Raman spectrometer for macroscopic measurements. Using superior optical components and design, the MacroRAM is an easy-to-use, yet highly sensitive instrument for both routine and complex Raman measurements.

        Features


        • Compact and robust design

        • User-friendly interface

        • Flexible sample handling

        • Best in class sensitivity

        • Safe operation

        • Affordable

        Hardware


        Laser

        The MacroRAM uses a 785 nm diode-pumped solid-state laser, with tunable output power from 7 mW to 450 mW and full width half maximum of 0.1 nm.  The power is controllable through LabSpec 6 software, scaling linearly from 0% (off) to 100% (full power).  The laser source is filtered through a narrow bandpass filter before being focused onto the sample in the sample compartment.  Raman signal is collected in the back scattered direction and filtered using an edge filter.

        Spectrograph

        The MacroRAM contains a fixed spectrograph for analysis of the resulting Raman signal.  It is equipped with a 685 gr/mm holographic grating for superior stray light rejection.  A spectrum is obtained by positioning a detector at the focal plane of the fixed spectrograph.  The dispersion is 10.3 nm/mm and provides a resolution of 8 cm-1 at 914 nm.

        Sample Compartment

        The sample compartment positions the sample at the focal point of the detection optics for optimal coupling to the spectrograph and detector.  A lens focuses light from the excitation laser to the sample, and the Raman signal is collected along the same path in a back-scattered Raman configuration directing the signal to the fixed spectrograph and detector.  The sample compartment accommodates various optional accessories.

        Detector

        Each MacroRAM contains a multichannel CCD detector to record a full spectrum of the resulting Raman signal from the sample.  It uses a back illuminated near-IR optimized Syncerity CCD cooled to -50°C for the highest available in-class sensitivity.  The use of the Syncerity CCD with the MacroRAM’s fixed spectrograph provides 3300 cm-1 of total spectral coverage (100 cm-1 to 3400 cm-1).  A correction file is stored to correct for wavelength dependencies of each optical component.  The files are created at HORIBA for every instrument and are automatically applied to data through the LabSpec 6 software.  Full details of the sensor can be found here.

        External Probes

        Each MacroRAM is equipped with the capability to connect an external probe for remote sample measurements.  The excitation source is passed through the sample compartment to a fiber where it is coupled to the LASER OUT port on the MacroRAM.  An FC/PC terminated fiber may then be connected from the LASER OUT port to an external probe.  The returning signal can then be connected using an FC/PC terminated fiber to the SIGNAL IN port on the MacroRAM.  An internal fiber then passes the signal to the fixed spectrograph and CCD detector for analysis of the Raman signal.  An external interlock, key switch, and safety shutter ensure safe operation when the laser is used in an external configuration.  To enable operation of the shutter, the key switch must be set to ENABLE.

        The external interlock can be used to connect to any number of additional safety measures, for example, a door switch.  The interlock is comprised of a two pin connector; continuity must be maintained between the two pins to enable laser output.  If continuity is interrupted, the shutter will automatically close, blocking the laser output.

        Software


        LabSpec 6 Spectroscopy Software

        The LabSpec 6 spectral software suite used on all the HORIBA Jobin Yvon analytical and research Raman spectrometer systems is now also available for modular Raman systems. It has been designed and written as a dedicated Raman spectroscopy package and offers many powerful capabilities not found in a basic spectroscopy software.

        Accessories


        HPLC Flow Cell

        With a sample capacity of 20 μL, this non-fluorescing fused silica cell is ideal for on-line monitoring of Raman samples. The cell maintains high sensitivity because it has a large aperture for collecting the excitation light to the sample and spontaneous Raman emission from the sample. The flat sides allow maximum throughput while keeping the scattering of the incident radiation to a minimum. In order to use this cell, the user must also have the thermostatted cuvette holder.

        Standard Quartz Cuvette

        With a 4-mL volume, this cell measures 10 mm × 10 mm in cross-section, and comes with a Teflon® stopper to contain volatile liquids.

        Reduced Volume Cuvette and Adapter

        Reduced volume cuvettes are available in 250 µL or 500 µL volumes. Each reduced volume cuvette requires an adapter to fit properly into the standard cuvette holder.

        Fused Silica Cuvette

        This 2-mL to 4-mL non-fluorescing fused silica cell can accept a magnetic stirrer, has a 10-mm path length, and includes a white Teflon® cap that prevents sample evaporation.

        Thermostatted Cuvette Holder

        The Thermostatted Cuvette Holder keeps a sample at a constant temperature from  -20°C to +80°C. From 5°C to +80°C the temperature is maintained with just water. Below 5°C the temperature is maintained by an ethylene glycol/water mixture pumped through an external circulating temperature bath (not included). The holder also includes a magnetic stirrer, enabling mixing of turbid or viscous samples.  For temperature measurements, the user must supply their own or purchase the Temperature Bath.

        Solid Sample Holder

        The Solid Sample Holder is designed for samples such as thin films, powders, pellets, microscope slides, and fibers.  The holder consists of a base with a dial indicating angle of rotation, upon which a bracket, a spring clip, and a sample block rest.  This holder comes standard with every MacroRAM.

        Cuvette Holder

        The Cuvette Holder is designed to hold standard 10 mm x 10 mm cuvettes for measurements of liquids.  With additional adapters, reduced volume cuvettes or smaller cuvettes can also be placed in the Cuvette Holder.  This holder comes standard with every MacroRAM.    

        SuperHead

        The SuperHead is a high efficiency remote Raman probe which enables in situ non-invasive chemical analysis to be undertaken.  The purpose of the SuperHead is to efficiently deliver the laser beam to the sample material, and to collect and filter the returning Raman signal.

        The SuperHead uses a single FC/PC terminated fiber for delivering the laser excitation and another FC/PC terminated fiber for signal collection. High efficiency filters incorporated within the probe provide effective laser and Raman filtering.

        The SuperHead can perform measurements in a non-contact/non-invasive mode or in an immersion mode, using specific accessories.

        Temperature Bath

        For studies of samples whose properties are temperature-dependent, use theTemperature Bath along with the Thermostatted Cuvette Holder (see above). The controller circulates fluids externally, with tubes leading to the sample chamber. The temperature range is from –20°C to +80°C. Sensor and all cables are included with the  Temperature Bath and it is available in a 110V and 220V version.

        External Probes

        Various external immersion and touch probes are available to add to the MacroRAM.  External probes can be easily connected to the MacroRAM for measurements outside of the sample compartment to accommodate larger or irregularly shaped samples. 

         

        Wavelength

        785 nm

        Laser Power

        7 mW – 450 mW

        Laser Safety

        Class 1, internal sample compartment; Class 3b, external probe

        Dispersion (nm mm-1)

        10.3

        Spectrograph f/#

        3.3

        Spectrograph Focal Length 

        115 mm

        Spectral Range

        100 – 3400 cm-1 (Stokes)

        Detector Type

        Syncerity Back illuminated NIR CCD

        Sensor Size

        2048 x 70

        Pixel size 

        13 µm

        Detector cooling

        -50°C

        Dynamic Range

        42,550:1

        CCD Dark Current (e-/pixel/s)

        0.05

        Spectral Resolution 

        8 cm-1 at 914 nm

        Dimensions  (W x D x H)

        432 mm (17”) x 432 mm (17”) x 381 mm (15”)

        Weight

        45 lbs (20.4 kg)

        Ambient Temperature Range

        15 – 30°C (59 – 86°F)

        Maximum Relative Humidity

        75%

        Power

        Universal AC single-phase input power; 100-240 V AC; line frequency 50 – 60 Hz

        Fuses

        One 5 x 20 mm IEC approved, 2.0 A, 250 V, time delay fuse

        Operating System

        Windows 7 or Windows 10 (32-bit or 64-bit)

        scrollable
        Following Epoxy Cure with Macroscopic Raman Analysis
        Following Epoxy Cure with Macroscopic Raman Analysis
        Because Raman spectroscopy provides information on molecular composition, it is an ideal tool for studying chemical reactions. In particular it has been used successfully for studying polymerization where the change often involves the disappearance of a carbon double bond (>C=C<) as the polymer chain is lengthened by the addition of a monomeric group. In this note we will be looking at epoxy cure which is a reaction that causes cross-linking during the polymerization process to form a solid with fixed three-dimensional geometry.
        Quantitative Analysis of Common Components in a Chemical Mechanical Polishing (CMP) Slurry Using Raman Spectroscopy
        Quantitative Analysis of Common Components in a Chemical Mechanical Polishing (CMP) Slurry Using Raman Spectroscopy
        In this application note, Raman spectroscopy is explored as an easier and more flexible technique for quantifying common components in a CMP slurry, such as benzotriazole and glycine, without any sample preparation or costly consumables.
        Quantitative Analysis Using Raman Spectroscopy in Pharmaceutical Applications
        Quantitative Analysis Using Raman Spectroscopy in Pharmaceutical Applications
        Raman spectroscopy is well known as a powerful analytical method for qualitative chemical analysis. Less well known is that under certain conditions Raman spectroscopy can also be an effective method for quantitative analysis. Here we demonstrate that capability for quantitative analysis under a variety of conditions, involving different solutes in a solution and solution mixtures, and its applications to pharmaceutical analysis such as content uniformity.
        Rapid Polymer Identification of Fishing Gear Using Raman Spectroscopy
        Rapid Polymer Identification of Fishing Gear Using Raman Spectroscopy
        Plastic pollution from fishing gear is a global problem that harms the environment. Recycling of damaged or abandoned fishing gear is one way of mitigating the issue, however the exact nature of the polymer must be known in order to identify the correct recycling stream. In this paper, the MacroRAM benchtop Raman spectrometer with remote BallProbe® is used to quickly identify plastics used in various gillnet samples. Raman spectroscopy is demonstrated to be an excellent technique for identifying not only different types of polymers, but also different variants within a polymer class and additives including pigments.

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