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The instrument can't be together!

Which instrument can put in the same room, which cannot be put in the same room, have to do comprehensive consideration, it not only involves the safety of the instrument itself, but also involves the analysis of the testing personnel safety and analysis the reliability of test results. Based on the different characteristics of the instruments and equipment, for example, analyzed the certain precision instruments put taboo, hope to be of enlightenment.
A standard, professional laboratory, be particular about reasonable use of the space, and should not blindly will equipment placed centrally, what kind of instrument can be put in the same room, which cannot be put in the same room, have to do comprehensive consideration, it not only involves the safety of the instrument itself, but also involves the analysis of the testing personnel safety and analysis the reliability of test results. Based on the different characteristics of the instruments and equipment, for example, analyzed the certain precision instruments put taboo, hope to be of enlightenment.
AAS, icp-aes, icp-ms is what do not put in a room? 1. Strong electromagnetic interference and electromagnetic radiation Such as graphite furnace GFAAS, flame AAS in the work to the external radiation electromagnetic interference. And as key components of icp-aes and icp-ms inductively coupled plasma, is a high frequency high power device, also can produce a lot of electromagnetic interference when excitation. Similar to the above analysis of the large equipment, work when his power vulnerable to external electromagnetic interference, itself may also be intermittent leak outward strong electromagnetic interference and electromagnetic radiation. If more than one similar instrument working in the same room at the same time, not only easy to cause interference, but also for a long time working in this environment of the staff health. 2. Not all the same kind instrument suitable for concentrated so was laid, not all the same kind instrument is fit for concentrated in one large instrument indoor, for those big power, vulnerable to electromagnetic interference and electromagnetic interference caused by itself, the equipment should be considered independent or scattered. Can focus put equipment, also should consider the power supply load ability. Eliminate interference sources, to ensure safe operation of the equipment.
More reasonable instrument in a big room? 1. Easy to cause energy waste, lead to the rising cost of test of a large space and a small space environment temperature and humidity reaches a certain level, the energy consumption of the air conditioning system difference is obvious. If the local segmentation way, just need to open the independent air conditioning system, instrument room doesn't work, don't start the air conditioning system, which is good for energy saving and cost control. 2. Easy to produce noise pollution, for example, flame atomic absorption spectrometer, in order to guarantee provided by the constant air pressure, air compressor must be frequent start-stop. Many sets of similar instruments and to work together in the same room, air compressor noise produced when work is unbearable. In addition, as icp-ms, in order to maintain the instrument work the vacuum degree of vacuum pump must continue to work long hours, single vacuum pump work when the noise is large, if such instrument LiangSanTai work at the same time, the noise pollution resulting from the vacuum pump will be very serious. 3. High power pretreatment devices together in one room? We know that the laboratory in the oven, muffle furnace, furnace, GFAAS, GC, icp-aes and other physical and chemical inspection instruments and equipment are high power consumption equipment, focus on using easy to cause the room floors of power load even nervous. Even if the equipment the secondary voltage stabilizer, also will affect the stability of instruments and equipment work, thus reducing the reliability and credibility of instrumental analysis data.
How to plan large-scale instrument room? Set up a special gas cylinder room instrument room especially large equipment room should be set between buffer and special gas cylinder room, don't put much noise larger auxiliary equipment placed directly on the machine interior. Cylinder chamber should be between the exhaust smoke system and alarm devices, and placed the fire fighting equipment. No single cylinder chamber, must put the cylinder in a gas cabinets, and we have smoke exhaust system and combustible gas cabinets and toxic gas leakage alarm device.
Balance and spectral instrument cannot put together and what instruments? And instruments form a complete set of air compressor, vacuum pump and so on noise and vibration; Used for ventilation cabinet and reagent cabinet which need local ventilation unit, such as set in the ceiling and exhaust to through the outer wall also generate noise and vibration. If all kinds of unreasonable housing location arrangement is likely to make the noise and vibration superposition, cause serious pollution, noise pollution and vibration influence the operation of each lab. Such as vibration might affect balance room with floor and spectrum, making precise electronic balance and part of the spectrum instrument can not work stable, serious impact on the reliability of the data. Indoor spectral instruments do not have a pool in instrument room pool and water tank design, easy to make indoor humidity increases, especially in the southern city, the summer even if has a special dehumidifier is not easy to effectively control the indoor humidity. In this humidity larger environment for a long time, easy to cause the spectral spectrum instruments system optical components mildew to change, especially easy to make the core components of grating spectral efficiency is reduced, cause this kind of instrument analysis sensitivity low. Balance room with pretreatment room don't too far Try to balance room and each lab don't too far away from pretreatment chamber, prevent weighing samples after "trek" floats, etc., some laboratory area is larger, can be installed on the same floor two balance room. Before the treatment room and equipment room don't too far, convenient put directly with good sample instrument room. Cylinder room on the first floor, best handling cylinders is a LiQiHuo, too tired. Some equipment can be put together, gas chamber to design good, AA, AFS match is also not long tube road signs, ICP gas also is more, these a few best near the gas chamber room.
Example analysis: what kind of instrument can not be put in a room by HPLC and UV can put the same room? We have many kinds of analytical instruments in a room, including liquid, ultraviolet, rotation, the gas phase, infrared, etc., but audit the opinions of the experts is: infrared should have a single room, with their large detection is influenced by temperature and humidity. Other no special provisions can't together. Gas phase liquid can be placed in a room? Estimates that a lot of laboratory in order to save space is to do so. But when CMA review may prescribe nonconformities, said gas phase liquid can't put together, need to be separately placed rectification. Strictly speaking, cannot put together the reasons are: (1) the gas phase test measurement can be volatile organic substances, when sample prepared, such as the absence of good fume hood is difficult to ensure no volatile stuff in the air, and liquid phase of the light path is also difficult to guarantee the airtight, so a. grating in the optical path most susceptible to corrosion of organic compounds; B. most of the mobile phase also is in the air, under the condition of its shape for a long time there will be some ghost peak. (2) the liquid phase in use is to have a lot of organic liquid volatilization in the air, as we all know the gas phase at the same time can say its flame is exposed to the air (just don't see directly), the organic gases reach a limit, however, may be a fire. (3) should pay attention to is the total power of the lab together when using superimposed a nuclear power, try not to put together with, at the same time to have separate good grounding. (4) the gas phase of mechanical noise is greater than the school, and at the same time meet gas make indoor temperature change is very big, sometimes will affect the stability of liquid machine, walk long time gradient occurs at baseline drift up and down the first mate. In short not restored shall not put together, unless conditions have very good. Chromatography and atomic absorption can in the same room? Gas chromatography lab is quite harsh environmental requirements, control temperature and humidity to use QuShiJi and air conditioning, humidity is within 70% (south), the best temperature of 25 to 30 degrees. With liquid phase and gas phase mass spectrometry, liquid mass spectrometry put together, it is best not to and vibration objects put together. If space is enough big, separate, chromatography and spectral instruments are separated. If it is limited space, it is necessary to put together, need to pay attention to: 1, put together the experiment can also, but to see how specific room, if space is insufficient, must try to put in far away from the side. (universal exhaust hood and atomic absorption cover is required) 2, if a cylinder chamber must be put in direct sunlight, you can use some thick curtain, and exhaust gas cabinets to alarm device. Laboratory ventilation system is very important, must be thoughtful. Can balance and other instruments on a room? Belong to the more sophisticated equipment for balance, vibration, dust, temperature change Will have an effect on the weighing accuracy, thus affecting the entire analysis results. Accurate weighing of the sample is to do a good job of analyzing the basis and conditions. So the balance should be stored in antivibration, dustproof, temperature and humidity balance room, can't put the same room with the rest of the instrument. Flame aas and ICP can be in the same room? Can be placed in the same room spectrum instrument does not interfere with each other, and the advantage is exhaust can walk a manifold, pick up two absorbing cover, environmental requirements for the room does not need too much. ICP cannot put together and what instruments? Must be independent in a room?
Icp-ms is separated from AAS, AFS, AAS, AFS will make the room air metal element is high, influence the icp-ms work.
1. The instrument can be put together, in addition to consider different instruments required for the environment, also should consider whether it will cause interference, or whether the required degree of protection. Such as ICP does not put them with the XRF, consider the XRF could launch to the human body harmful rays, personnel ICP when they try to operate, no need additional this injury. 2. The ICP independent room is better, the environmental requirements need constant temperature and humidity, there can be no vibration, dust. 3. Usually there will be instructions on atomic fluorescence instrument specifications, not the ICP put inside a room, to prevent electromagnetic interference. ICP instrument room have requirements on power lines in order to guarantee the safe operation of the ICP instrument, power lines must have enough capacity, otherwise the instrument run time line voltage drop is too large, affecting the service life of the instrument. As a precision measuring instrument, it also needs to have a relatively stable power supply, the change of the power supply voltage is generally not more than + 5%. Instrument power lines had better try not to muffle furnace with large power equipment such as share a power supply circuit, so as not to cause the instrument work is not stable.
You need to know: precision instrument room environment demands precision instrument room fire, shock, preventing electromagnetic interference, noise, moisture, corrosion and dust prevention, harmful gas prevention function of intrusion, room temperature constant as much as possible. To maintain the use of general instrument good performance, temperature should be in 15 ~ 30 ℃, conditional best control in 18 ~ 25 ℃. Humidity from 60% to 70%, can carry double doors and Windows need constant temperature instrument room and air conditioning equipment. Instrument room available terrazzo floors or anti-static floor, not recommended to use carpet, because carpet is easy to accumulate dust, still can produce electrostatic, large precise instrument room power supply voltage should be stable, usually allow voltage fluctuation range is plus or minus 10%. When it is necessary to be equipped with accessories (such as regulated power supply, etc.). Can be used to ensure uninterrupted supply, dual power supply. Should design a special ground, grounding resistance less than 4 Ω.
Summary analysis laboratory arranged layout is a system engineering, it involves physical chemistry, environment, air purification, and many other categories and subject knowledge. When arranging layout should be people-oriented, comprehensive consideration, comprehensive planning. Give full consideration to chemical pollution, noise pollution, radiation pollution, environmental pollution, electromagnetic interference, energy conservation, environmental protection, and many other factors. Make sure that the experiment personnel and the safety of the instrument especially large precise instrument, balance the whole experiment and the power supply and power load room floor, moderate consider the convenience of the operation, use and management, combining the entire lab neat and beautiful.
(data from the network, this paper compiled by experiment and analysis, all rights reserved)

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