U
NIVERSAL
ATR
S
AMPLING
A
CCESSORY
User’s Guide
MOLECULAR SPECTROSCOPY
Page 1: ...UNIVERSAL ATR SAMPLING ACCESSORY User s Guide MOLECULAR SPECTROSCOPY ...
Page 2: ... a particular purpose PerkinElmer shall not be liable for errors contained herein for incidental consequential damages in connection with furnishing performance or use of this material Copyright Information This document contains proprietary information that is protected by copyright All rights are reserved No part of this publication may be reproduced in any form whatsoever or translated into any...
Page 3: ...m 10 Contamination Check 11 Cleaning the crystal 11 Performing a Contamination Ready Check 11 Performing Ready Checks that use Polystyrene 12 Handling Samples 13 Solid samples 13 Liquid samples 13 Obtaining a Sample Spectrum with Spectrum Software 14 Obtaining a spectrum of a solid sample using the pressure arm 14 Obtaining a spectrum of a liquid sample 17 Maintenance 19 Replacing the pressure arm...
Page 4: ...ormation that is provided with some procedures CAUTION ATTENTION We use the term CAUTION to inform you about situations that could result in serious damage to the instrument or other equipment Details about these circumstances are in a box like this one Nous utilisons le terme ATTENTION pour vous informer des situations pouvant entraîner des dommages sérieux à l instrument ou à d autres équipement...
Page 5: ...he analysis of solids powders pastes gels and liquids The technique is non destructive As the beam does not penetrate deeply into the sample this technique is ideal for analyzing strong infrared absorbing solutions such as emulsions or aqueous solutions The technique can also prove useful in measuring homogeneous solid samples solid surfaces and coatings on solid samples Figure 1 The Universal ATR...
Page 6: ...t penetrates into the sample by a few microns Figure 2 illustrates this process Figure 2 Principle of UATR operation The UATR can be used to analyze homogenous solid samples solid surfaces or coatings on solid samples Force may be applied to ensure good contact The Spectrum Two UATR uses a diamond crystal The diamond crystal is hard is not easily scratched is resistant to strong acids and bases an...
Page 7: ...hipped fully assembled and ready to install Part Number Description Quantity UATR Accessory 1 L1600239 Test Sample Holder 1 L1601742 Medium Shoe 1 L1601743 Large Shoe 1 L1601746 Volatiles Cup 1 L1601856 Apron 1 L1601857 Transit Shoe 1 L1601862 Transit Friction Pad 1 L1050242 Spectrum Two Manuals CD 1 L1100667 UATR Accessory Shipping Disk 1 The Shipping Disk contains reference spectra for your acce...
Page 8: ...ansport You may also need to remove the covers on the left and right sides of the accessory and the top plate dust cover Store all these in a safe place for future use if required To remove the sample plate and install the UATR 1 Raise the sample cover of the spectrometer to the vertical position and lift it upwards clear of the instrument Store it in a safe place for future re use 2 Slide the sam...
Page 9: ... 4b NOTE If the accessory is pivoted too far forward on the sample area ledge it will not move correctly into position a b Figure 4 Installing the accessory 4 Push the UATR home firmly ensuring that the top of the accessory mates properly with the lid of the instrument Figure 5 The UATR is now ready for use Figure 5 UATR installed in a Spectrum Two ...
Page 10: ... 6 and Setup Instrument BeamPath Figure 7 tabs are updated to show details of the UATR accessory Figure 6 Setup Instrument Basic tab with UATR details circled Figure 7 Setup Instrument BeamPath tab with UATR icon circled Taking a Reference Background spectrum Once you have installed your UATR and before you use it for the first time you should consider taking a background spectrum which will act a...
Page 11: ...56 is provided that protects the top and front of the accessory when cleaning with solvent Performing a Contamination Ready Check NOTE For information about setting up Ready Checks see the Spectrum on screen Help The following description assumes that Ready Checks are already set up and enabled To perform a Contamination Ready Check 1 From the Measurement menu select the Instrument Checks sub menu...
Page 12: ...ects of the performance of your complete system including your UATR are fit for purpose Some of these Ready Checks including Abscissa Check and Ordinate Check use a polystyrene sample as reference A polystyrene sample that can be used on the top plate of your UATR is provided for use when carrying out these Ready Checks NOTE For information on Ready Checks see the Spectrum on screen Help ...
Page 13: ...en the sample and the surface of the crystal is important to prevent loss of beam penetration To aid this good contact the UATR pressure arm can be used in conjunction with a shoe to apply a controlled force to the sample and make better contact with the crystal The following shoes are available Large L1601743 for low sample pressures Medium L1601742 for higher sample pressures Liquid samples Visc...
Page 14: ...round spectrum Spectrum automatically alerts you when you need a new background and can be configured to request a new background at set intervals on the Setup Instrument Data Collection tab NOTE If you want to collect a background that will be added to the Sample View and can be saved separately then select Background as the Scan type on the Setup Instrument Basic tab 3 Push the pressure arm back...
Page 15: ... with a transmission level of between 40 and 80 cannot be achieved the pressure should be released and a new sample prepared with an increased or decreased amount of material The Force Gauge area of the dialog will display the force being applied If the indicator bar turns red then too much force is being applied the pressure arm and or the crystal is in danger of being damaged NOTE If you want to...
Page 16: ...ay use as the pressure required for this to happen is greater than should be necessary to achieve optimum transmission of between 40 and 80 The Force Gauge indicator bar if displayed will turn red before the over pressure device comes into effect 9 Click to obtain the sample spectrum The History settings of your sample will contain information about the UATR accessory type The Spectrum Help file d...
Page 17: ...ew and can be saved separately then select Background as the Scan type on the Setup Instrument Basic tab 3 If your sample is volatile or non viscous continue the procedure below otherwise place a drop of your sample on top of the crystal and go straight to step 11 4 Push the pressure arm back until it is clear of the top plate 5 Slide the medium size shoe over the end of the shaft until it clips i...
Page 18: ...tab is displayed showing a preview of your sample spectrum You are now ready to collect data 12 Click to obtain the sample spectrum The History settings of your sample will contain information about the UATR accessory type The Spectrum Help file describes how to format process and report your results To open the Help file select Contents from the Help menu CAUTION ATTENTION Clean the volatiles cup...
Page 19: ...our UATR on top of the crystal 3 Swing the pressure arm across and screw it down securing the transit block firmly in place This provides an even pressure over the surface of the top plate Figure 12 Removing the top plate 4 Use a ball ended hexagonal wrench to remove the two fixing screws from the rim of the top plate 5 Loosen and swing back the pressure arm 6 Remove the transit block and then lif...
Page 20: ...irror that protrudes from the body of the accessory CAUTION ATTENTION If you put the top plate on in the wrong orientation you may cause damage to the gold mirror Si vous placez la plaque supérieure dans la mauvaise orientation vous risquez d endommager le miroir d or The top plate should fit easily into position on top of the two support pillars and on the O ring inside the rim Ensure that the O ...
Page 21: ...ry User s Guide 21 9 Secure the transit block on the top plate with the pressure arm and then tighten the two fixing screws so that they are flush with the rim of the top plate 10 Remove the transit block and store it for future use ...
Page 22: ...22 Universal ATR Sampling Accessory User s Guide ...
