�-Ǩy�KDr� A fluoropolymer-coated microwave cavity (oven interior). The precise recipe can vary depending on the material to be digested and who needs the information. A verification report is on file. A door safety interlock system that prevents microwave emissions when the door is open. J�aa�ia�mina�@OK�� � �ʗ*v͘��5���B��8a��� ��PQ �.�1܅$�d0\e�Ig ���8:::8:X: 4�n��`�":@�� I�Ɏ��H��Jh When working with unknown samples it is suggested that the user allow 15 minutes to predigest the samples before sealing the vessel. Never attempt to digest samples larger than 0.5 grams if the organic content and composition of the sample is unknown. The system uses microwave energy to heat samples in polar or ionic solutions rapidly and at elevated pressures. Accessories for the MARS 5 supplied by CEM Corp. A typical procedure for preparing plant material for ICP/MS. Our CEM representative is Michael Burnett. %%EOF The user should consult the operation manual for the list of solutions and solvents not recommended for use in the system or in the particular reaction vessel you are using. The oven's microcomputer has a menu of preprogrammed settings. Berkeley, CA 94720-1076, Voice (510) 642-2212 The user can also change a number of the ovens parameters including the percentage of power applied, the total wattage, control temperature, pressure, ramp and hold time, and the number of reaction stages or cycles. Pressure relief devices should always be used when heating samples. 498 0 obj <>/Filter/FlateDecode/ID[]/Index[490 18]/Info 489 0 R/Length 59/Prev 440131/Root 491 0 R/Size 508/Type/XRef/W[1 2 1]>>stream This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. This will allow for easily oxidized compounds to exhaust volatile gasses and diminish the pressure inside the vessel during heating. A programmable microcomputer that controls and monitors the power, temperature, and pressure within the reaction vessels, and is capable of storing 100 programs with up to five reaction stages per program. 507 0 obj <>stream Power cord receptacle and access to fuses are on the back. Its main purpose is for preparing samples for analysis by atomic absorption (AA), inductively coupled plasma emission spectroscopy (ICP), gas or liquid chromatography. 490 0 obj <> endobj Fax (510) 643-9637  Close the door, press start. Dried plant material (0.1 - 0.5 grams of homogeneous material) is weighed out and placed in each reaction vessel. The microwave accelerated reaction system is designed for digesting, dissolving, hydrolyzing a wide variety of materials in a laboratory setting. Concentrated acid (10 ml 70% nitric acid) or dilute acid and oxidizer (5ml H2O + 5 ml 70% nitric acid + 2 ml 30% hydrogen peroxide) are added to each vessel. The vessels are placed in the support modules with the load distributing caps, and tightened with a torque wrench to 5 ft*lbs. These remove harmful fumes from the cavity to a fume hood or approved air handling device. Attach pressure sensor and Thermowell to the control vessel. CEM Mars 5 Microwave Accelerated Reaction System General description and features The microwave accelerated reaction system is designed for digesting, dissolving, hydrolyzing a wide variety of materials in a laboratory setting. endstream endobj 491 0 obj <> endobj 492 0 obj <> endobj 493 0 obj <>stream On/off switch is located on the side above the air intake. endstream endobj startxref http://hydrology1.nmsu.edu/teaching/soil698/Student_Material/microwave/MWSPweb/jkallest/operation_Text.htm, Operation of the Mars 5 Microwave Accelerated Reaction System. By continuing to browse the site you are agreeing to our use of cookies. �K�=�%D�Y�o^�M�n�w&p��|#l�S��Z���5�?� ��!��wpa=F���w�����!��@N6��u��8�q��3����M�sq��b��ى�o����ag��X���:d�` 4�� A cavity exhaust fan and tubing to vent fumes. CEM will not be responsible for damage to the MARS Microwave Digestion System or personal injuries resulting from use of Parr microwave acid digestion bombs. Place the carousel on the drive lug in the oven and attach the pressure sensor and temperature sensor. University of California The measured values for time, power, pressure, and temperature can be stored and recovered within the computer or sent to a remote computer for analysis on some oven models. %PDF-1.5 %���� For the sake of uniformity. United States Visit us online at www.cem… 2. 2251 College Building The ARF has a MARS5 instrument with 24 vessels. 0 Set line voltage on the MARS 6. Before subjecting vessels to microwave energy the vessels should be free of particulate matter or drops of liquid such as high salt solutions that can absorb microwaves, which in turn can cause localized heating and damage to the vessel. Zeroing the pressure sensor every so often is recommended. Box 200 Matthews, NC 28106 Get the latest information on your new MARS 6. �᳀5�*,��`FB�B �^K�L�� S�K ���@�!�t�@����x�� ��Y���ю��� p^g`���~�U\V,��#��?�� Samples should be filtered through filter paper or centrifuged and diluted to an appropriate final volume (ICP machines need to have acid concentrations be below 20%). “Video”, then “Welcome” for a short Restart system for the setting to activate. 4. Edit/Create Method -> User Directory -> “New Method”. Never heat high boiling point acids like concentrated sulfuric or phosphoric acid in the microwave. Map & Directions, http://hydrology1.nmsu.edu/teaching/soil698/Student_Material/microwave/MWSPweb/jkallest/operation_Text.htm. Place the support modules on the carousel and attach the top ring. h�bbd``b`��@�q#�`L�@��$�H�c`$@�gx� � +-� Exhaust tubing and blower are attached from the back. Either select pre-programmed microwave control settings from the menu installed on the oven's computer, or program in parameters for power, control temperature, pressure maximum, ramp time, hold time and stage settings that you select or are specified by a standard procedure. Blue pressure caps (with pressure membranes inserted) are to be hand tight. C� ���3���Ľ@ʍ����� � 9<2 Some of these are EPA methods, and some are methods developed by CEM Corp. This instrument complies with United States Code of Federal Regulations 21CFR Part 1030.10 (C) for microwave leakage. h�b```f``��� ��� @)>���*:{�3���b�R�Y.����.g=�/��&����������%��%K3���6,�XJ�W�Z��ffId����r�}�(�K(�9�*��l����c�{��-�M0T���mK5�vM������_�_�����p�D��c�Ϊ�����ʼn��)�R����[Xz����ٜYZY^1�e���(��M���` �V!���Y-��RR�2S����BSC��04-45- (� endstream endobj 494 0 obj <>stream After the cool down period when the temperature sensor reads below 35 degrees C it is safe to remove the carousel from the oven. An alternating turntable that turns the samples 360 degrees within the microwave field. %/Ё��k��w9� 7g\��!�P��tr/vH��������q�xj��!D�1��A��y*��V͂؀��|�:����K"tX A microwave power system with user selectable power settings (0-1200 Watts).