仪器介绍
◆采用一只盖革-弥勒计数管来测定α、β、γ和X射线辐射 ◆“安全第一”(Safety First)的校准功能能够避免校准人员的辐射接触 ◆检测仪符合欧洲CE认证要求
主要特点
◆内置卤素淬灭剂GM探测器,对α、β射线源的灵敏度很高 ◆四位液晶显示,可选择mR/hr、CPM、mSv/hr、CPS或Total/Timer等单位 ◆总计数/定时器功能对轻微污染进行定时的精确检测,定时时间可选择1分钟-- 24小时
技术参数
◆测量范围:mR/hr(毫伦/小时):0.001—110.0,CPM(每分钟计数):0—300,000 μSv/hr(微希伏/小时):0.01—1,100,CPS(每秒钟计数):0—5,000,总计数: 1—9,999,000 ◆效 率:Sr-90(546kev,2.3MeV βmax)约75% C-14(156kev βmax)约11% Bi-210(1.2MeV βmax)约64% Am-241(5.5MeV α)约36% ◆灵 敏 度:3500CPM/ mR/hr(对于Cs-137) ◆精 度:±15% ◆温度范围:-10℃---+50℃ ◆电 源:1节9V碱性电池,电池寿命 200小时◆尺寸重量:150×80×30mm 350克(含电池)
应用领域
◆探测和测定表面沾污◆在操作放射性核素时监测可能存在的放射性暴露量◆调查环境污染◆测定惰性气体及其它低能放射性核素◆建筑装饰材料放射测定 射线危害:低剂量的放射性射线辐射(天然背景辐射的变化范围),对人体无害或风险甚低,但达到一定剂量则会对人体有害,可引起癌症、白内障、不孕症、突变、萎缩效应、寿命减短,甚至死亡
应用:
侦测放射性射线,以采取相应防护措施。海关和边境巡逻,政府执法部门,检疫检验,应急事故处理,核电厂、银行、政府、实验室等部门安全巡查,医学废料处理,消防队,采矿业,科学实验,个人保护,连续监测
参考信息(来自中国辐射防护研究院)
居民的剂量限值为每年1mSv。即0.114μSv/hr。
放射性职业人员剂量限值为每年20mSv,但任何一年不能超过50mSv。
| 技术参数 | |||
| 通道数量 | 96 | 通道间隔 | 50GHz, 100GHz |
| 通道频率 | 196.45~191.7THz | 最大输入功率 | 500mW; 27dBm |
| 带宽 | 1526.05~1563.86 nm | 光源接头 | SC/PC Standard |
| 测量速度 | 4 Sec. (all 96ch.) | 电池 | 锂聚合物电池, 1800毫安时,3.7伏 |
| 测量范围 | +10~-40dBm | 电池工作时长 | 充满电后单次使用620分钟 |
| 测量精度 | ± 1.0dB @ -40 dBm | 电流消耗(Max) | 0.25A |
| 显示屏分辨率 | 0.01dB | 电力消耗 | 0.925W |
| 显示单位 | dB, dBm,nm,THz | 显示 | 3.5” TFT-LCD, 16bit color, 240*320 |
| 重量 | 0.6 kg | 尺寸 | 196*95*40 mm |
| 温度 (环境条件) | -20 to +55 °C (操作环境) | 湿度 (最大无冷凝) | 95% (操作环境) |
| -35 to +65°C (储存环境) | 85% (储存环境) | ||
美国米顿罗GM系列机械隔膜式计量泵/GM0120米顿罗加药泵/苏州加药泵
计量泵GM0050 /米顿罗GM0050/米顿罗计量泵GM0050/苏州GM0050计量泵
GM0090米顿罗/GM0090计量泵/米顿罗计量泵GM0090/苏州GM0090计量泵
米顿罗GM0120 /计量泵GM0120 /米顿罗计量泵GM0120/苏州GM0120计量泵
米顿罗GM0170 /计量泵GM0170 /米顿罗计量泵GM0170/苏州GM0170计量泵
GM0500米顿罗/GM0500计量泵/米顿罗计量泵GM0500/苏州GM0500计量泵
主要型号包括:GM0050 GM0090 GM0120 GM0170 GM0240 GM0330 GM0400 GM0500
特点:
平滑脉冲设计,无冲击 ? 冲程在静态及动态条件下均可调节
多种材质及泵头结构可选 ? 可选配电动冲程控制器
机械驱动PTFE膜片 ? 最大液体温度40 ℃*
手动/ 自动冲程调节可选 ? 稳态精度 +/- 2%(10%~100%)
冲程可调0~100%(自动/手动) ? 最大吸程4m水柱*
可选配电机控制器实现外部信号自动 控制, ? 最大吸入压力:20m 水柱
电机频率0~100%可调(GM泵 自动控制方式)
米顿罗机械隔膜泵,GM和GB系列两个系列。泵头材质为PVC,PP,SS316,高粘度等可选择,适合多种场合液体介质的输送。流量范围从2.25L到1800L均有。
可选双隔膜泵头结构
建议维护周期: 自动控制方式选择
电动冲程控制器接受外部控制信号,调节计量泵冲程长度, 从而改变计量泵输出流量。
GM系列计量泵选择ST型。 GB系列计量泵选择ECC型。
变频控制器:接受外部控制信号,调节计量泵冲程频率,从而改变计量泵输出流量。
供 电:220V/50HZ 单向
380V/50HZ 三相 控制信号:4~20mA 电机控制器(VARIPULSE):
仅用于GM系列计量泵,用于控制三相电机,改变冲程频率,从而调节计量泵输出流量。
V 型-同计量泵一体式安装 VR型-同计量泵分体式安装
主要型号包括:GM0050 GM0090 GM0120 GM0170 GM0240 GM0330 GM0400 GM0500
上海 | 江苏 | 浙江 | 安徽 | 福建 | 江西 | 山东 | 山西| 湖北 | 湖南 | 广东 | 广西 | 海南 | 重庆 | 四川 | 贵州 | 云南
苏州米顿罗机械隔膜计量泵
| 1)*系列型号编码 | 流量* L/h | 压力 MPa | 冲程 spm |
| GM0002PL1MNN GM0005PL1MNN GM0010PL1MNN | 2.25 4.5 9 | 1.2 1.2 1.2 | 36 72 144 |
| GM0025PL1MNN GM0050PL1MNN | 25 50 | 1.2 1.0 | 72 144 |
| GM0090PQ1MNN GM0120PQ1MNN GM0170PQ1MNN GM0240PP1MNN | 85 115 170 235 | 0.7 0.7 0.7 0.7 | 72 72 144 144 |
| GM0330PP1MNN GM0400PP1MNN GM0500PP1MNN | 315 400 500 | 0.5 0.5 0.5 | 144 144 180 |
上海 | 江苏 | 浙江 | 安徽 | 福建 | 江西 | 山东 | 山西| 湖北 | 湖南 | 广东 | 广西 | 海南 | 重庆 | 四川 | 贵州 | 云南
特点:
•平滑脉冲设计,无冲击 •冲程在静态及动态条件下均可调节
•多种材质及泵头结构可选 •可选配电动冲程控制器
•机械驱动PTFE膜片 •最大液体温度40 ℃*
•手动/ 自动冲程调节可选 •稳态精度±2%(10%~100%)
•冲程可调0~100%(自动/手动) •最大吸程4m水柱*
•可选配电机控制器实现外部信号自动 控制,•最大吸入压力:20m 水柱
电机频率0~100%可调(GM泵 自动控制方式)
•可选双隔膜泵头结构
•建议维护周期:≤1.0MPa 4000h
≤0.7MPa 8000h
自动控制方式选择
•电动冲程控制器 接受外部控制信号,调节计量泵冲程长度, 从而改变计量泵输出流量。
GM系列计量泵选择ST型。 GB系列计量泵选择ECC型。
•变频控制器: 接受外部控制信号,调节计量泵冲程频率,从而改变计量泵输出流量。
供 电:220V/50HZ 单向
380V/50HZ 三相
控制信号:4~20mA
•电机控制器(VARIPULSE):
仅用于GM系列计量泵,用于控制三相电机,改变冲程频率,从而调节计量泵输出流量。
V 型-同计量泵一体式安装
VR型-同计量泵分体式安装
1Human cyclic adenosinemonophosphate(cAMP)Elisa KitCatalog No. CSB-E04488h(96T) This immunoassay kit allows for the in vitro quantitative determination of humancAMP concentrations in serum, plasma. Expiration date six months from the date of manufacture FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES.2INTRODUCTIONCyclic adenosine monophosphate (cAMP, cyclic AMP or 3'-5'-cyclicadenosine monophosphate) is a second messenger important in manybiological processes. cAMP is derived from adenosine triphosphate (ATP)and used for intracellular signal transduction in many different organisms,conveying the cAMP-dependent pathway.cAMP is synthesised from ATP by adenylyl cyclase located on the innerside of the plasma membrane. Adenylyl cyclase is activated by a range ofsignaling molecules through the activation of adenylyl cyclase stimulatory G(Gs)-protein-coupled receptors and inhibited by agonists of adenylylcyclase inhibitory G (Gi)-protein-coupled receptors. Liver adenylyl cyclaseresponds more strongly to glucagon, and muscle adenylyl cyclase respondsmore strongly to adrenaline.cAMP decomposition into AMP is catalyzed by the enzymephosphodiesterase.cAMP is a second messenger, used for intracellular signal transduction,such as transferring the effects of hormones like glucagon and adrenaline,which cannot pass through the cell membrane. It is involved in theactivation of protein kinases and regulates the effects of adrenaline andglucagon. It also regulates the passage of Ca2+ through ion channels.3PRINCIPLE OF THE ASSAYThe microtiter plate provided in this kit has been pre-coated with agoat-anti-mouse IgG. Standards or samples are then added to theappropriate microtiter plate wells with a HRP-conjugated cAMP andantibody preparation specific for cAMP and incubated. Then substratesolutions are added to each well. The enzyme-substrate reaction isterminated by the addition of a sulphuric acid solution and the color changeis measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. Theconcentration of cAMP in the samples is then determined by comparing theO.D. of the samples to the standard curve.DETECTION RANGE0.08pmol/ml-250 pmol/ml. The standard curve concentrations used for theELISA’s were 250 pmol/ml, 50 pmol/ml, 10 pmol/ml, 2 pmol/ml, 0.4 pmol/ml,0.08 pmol/ml.SPECIFICITYThis assay recognizes human cAMP No significant cross-reactivity orinterference was observed.4MATERIALS PROVIDEDReagent QuantityAssay plate 1Standard1 x 0.25 ml(5000pmol/ml)HRP-conjugate 1(1000 x stock solution)Antibody 1(1000 x stock solution)HRP-conjugate Diluent 1 x 6 mlAntibody Diluent 1 x 6 mlNeutralizing Reagent 1 x 6 mlWash Buffer1 x 15 ml(10×concentrate)Substrate A 1 x 10 mlSubstrate B 1 x 10 mlStop Solution 1 x 6 mlOTHER SUPPLIES REQUIRED1. Deionized or distilled water.2. Concentrated HCl.3. Precision Pipets for volumes between 5μ l and 1000μ l.4. Repeater Pipets for dispensing 50μ l and 200μ l.5. Disposable breakers for diluting buffer concentrates.6. Graduated cylinders.7. A microplate shaker.8. Adsorbent paper for blotting.9. Microplate reader capable of reading at 450 nm, preferably withcorrection between 570 and 590 nm.5STORAGE1. For long-term best results, store stocks of the Standard ,Antibody andHRP-conjugate at -80℃. All other components of this kit are stable at4°C until the kit's expiration date.SAMPLE COLLECTION AND STORAGEThis ELISA is compatible with cAMP samples that have been treated withhydrochloric acid to stop endogenous phosphodiesterase activity. Samplesin this matrix can be measured directly without evaporation or furthertreatment.Tissue samples should be frozen in liquid nitrogen. The tissue should beground to a fine powder under liquid nitrogen in a stainless steel mortar.After the liquid nitrogen has evaporated, weigh the frozen tissue andhomogenize in 10 volumes of 0.1M HCl. Centrifuge at > 600 x g at roomtemperature. The samples can then be diluted in the 0.1M HCl.Cells grown in tissue culture media can be treated with 0.1M HCl after firstremoving the media. Incubate for 10 minutes and visually inspect the cellsto verify cell lysis. If adequate lysis has not occurred incubate for a further10 minutes and inspect. Centrifuge at 600 x g at room temperature, thenuse the supernatant directly in the assay. Cell or tissue lysis can beenhanced by adding 0.1% to 1% Triton x-100 to the 0.1M HCl prior to use.When used in this concentration range, the detergent will not interfere with6the binding portion of the assay, however there will be a modest increase inthe optical density. Samples containing Triton should be evaluated against astandard curve diluted in the same for the most accurate determination.Cyclic AMP in the media can be measured after treating 1 mL of thesupernatant media with 10 μ L of concentrated hydrochloric acid.Centrifuge at 600 x g at room temperature. The supernatants can then beused directly in the assay.Procedural Notes1. Allow all reagents to warm to room temperature for at least 30 minutesbefore opening.2. Pre-rinse the pipet tip with reagent ,use fresh pipet tips for eachsample,standard and reagent.3. Pipet standards and samples to the bottom of the wells.4. Add the reagents to the side of the well to avoid contamination.5. The kit uses break-apart microtiter strips,which allow the user tomeasure as many samples as desired.Unused wells must be keptdesiccated at 4℃ in the sealed bag provided,The wells should be usedin the frame provided.6. Prior to addition of substrate ensure that there is no residual washbuffer in the wells .Any remaining wash buffer may cause variationin assay resultes.REAGENT PREPARATIONBring all reagents to room temperature before use.71. Wash Buffer If crystals have formed in the concentrate, warm to roomtemperature and mix gently until the crystals have completely dissolved.Dilute 15 ml of Wash Buffer Concentrate into deionized to prepare 150ml of Wash Buffer.2. HRP-conjugate working solution: Centrifuge the vial right before use.Dilute the HRP-conjugate 1000x stock solution (take 6μl) with theprovided dilution buffers (6 ml).3. Antibody working solution: Centrifuge the vial right before use. Dilutethe Antibody 1000x stock solution (take 6μl) with the provided dilutionbuffers (6 ml).4. Standards: Centrifuge the vial right before use. Allow the 5,000pmol/mL cAMP standard solution to warm to room temperature. Labelsix tubes #1 through #6. Pipet 475 μL 0.1M HCl into tube #1 and 400 μL0.1M HCl into tubes #2-6. Add 25 μL of the 5,000 pmol/mL standard totube #1. Vortex thoroughly. Add 100 μL of tube #1 to tube #2 andvortex thoroughly. Continue this for tubes #3 through #6. Theconcentration of cAMP in tubes #1 through #6 will be 250, 50, 10, 2, 0.4,and 0.08 pmol/mL respectively. Diluted standards should be usedwithin 30 minutes of preparation. Label one tube as the ZeroStandard/NSB tube. Pipet 600μl 0.1M HCl into this tube.ASSAY PROCEDUREBring all reagents to room temperature for at least 30 minutes prioropening.ALL standards and samples should be run in duplicate.Add the reagen directly to the samples and vortex for 2 seconds immediatelyafter the addition.81. Refer to the Assay Layout Sheet to determine the number of wells to beused and put any remaining wells with the desiccant back into thepouch and seal the ziploc .Store unused wells at 4℃.2. Pipet 50 μL of the Neutralizing Reagent into each well, except theTA(Total Activity) and Blank wells.3. Pipet 100 μL of 0.1M HCl into the NSB(None Specific Binding) and theBo (0 pmol/mL Standard) wells.4. Pipet 100 μL of Standards into the appropriate wells.5. Pipet 100 μL of the Samples into the appropriate wells.6. Pipet 50 μL of 0.1 M HCl into the NSB wells.7. Pipet 50 μL of HRP-conjugate working solution into each well exceptthe TA and Blank wells.8. Pipet 50 μL of Antibody working solution into each well, except theBlank, TA and NSB wells.9. Incubate the plate at room temperature for 2 hours on a plate shaker at250~500 rpm.10. Empty the contents of the wells and wash by adding 400 μL of washsolution to every well. Repeat the wash 2 more times for a total of 3washes.11. After the final wash, empty or aspirate the wells, and firmly tap the plateon a lint free paper towel to remove any remaining wash buffer.12. Add 5 μL of the HRP-conjugate working solution to the TA wells.913. Add 200 μL of the Substrate solution to every well. Incubate at roomtemperature for 5~30 minutes without shaking. A gradient of blue colorshould become visible during the incubation period. (Substrate A andB should be mixed together in equal volumes within 15 minutes ofuse. Protect from light.)14. Add 50 μL of Stop Solution to every well. This stops the reaction andthe plate should be read immediately.15. Blank the plate reader against the Blank wells, read the optical densityat 450 nm (for HRP), preferably with correction between 570 and 590nm. If the plate reader is not able to be blanked against the Blankwells, manually subtract the mean optical density of the Blank wellsfrom all readings.1 0CALCULATION OF RESULTSSeveral options are available for the calculation of the concentration ofcAMP in the samples. The X-axis is the concentration of cAMP for thestandards. The Y-axis is either the Average Net Optical Density or thePercent Bound.1. Calculate the average Net Optical Density (OD) bound for each standardand sample by subtracting the average NSB OD from the average ODbound:Average Net OD = Average Bound OD - Average NSB OD2. Calculate the binding of each pair of standard wells as a percentage ofthe maximum binding wells (Bo), using the following formula:3. Using Logit-Log paper plot Average Net OD or Percent Bound(B/Bo) versus concentration of cAMP for the standards. Theconcentration of cAMP in the unknowns can be determined byinterpolation.1 1Typical Standard CurvesThese curves must not be used to calculate cAMP concentrations; eachuser must run a standard curve for each assay and version used.SensitivitySensitivity was calculated by determining the average optical density boundfor ten wells run with the Bo, and comparing to the average optical densityfor ten wells run with Standard #5. The detection limit was determined asthe concentration of cAMP measured at two standard deviations from thezero along the standard curve.Non-Acetylated VersionMean OD for Bo = 0.685±0.003Mean OD for Standard #5 = 0.604±0.010Delta Optical Density(0-0.08pmol/ml) = 0.0812 SD's of the Zero Standard = 0.006Sensitivity = ̄0.006/0.081×0.4pmol/ml = 29.6 fmol/mL1 2LinearityA sample containing 16.0 pmol/mL cAMP was serially diluted 7 times 1:2 inthe 0.1M HCl and measured. The data was plotted graphically as actualcAMP concentration versus measured cAMP concentration. The lineobtained had a slope of 1.000 with a correlation coefficient of 0.999.Cross ReactivitiesThe cross reactivities for a number of related compounds were determinedby competition ELISA assays. Potential cross reactants were dissolved inthe kit Assay Buffer at concentrations from 500,000 to 500 pmol/mL. Thesesampleswere then measured in the cAMP assay, and the measured cAMPconcentration at 50% B/Bo calculated. The % cross reactivity wascalculated by comparison with the actual concentration of cross reactant inthe sample and expressed as a percentage.Compound Cross ReactivitycAMP 100%AMP <0.0001%ATP <0.0001%cGMP <0.0001%GMP <0.0001%GTP <0.0001%cUMP <0.0001%CTP <0.0001%
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一、PXR型数字温控表的功能特点如下: 1. 前面板IP66防水结构,三健式菜单操作;2.标准螺钉接线,无须插座;3. 纵向尺寸比PXW表更短;4. UL/CSA/CE认证标志;5. 测量值大LED红色显示;6. 控制功能多种:简单ON/OFF控制,PID带自动调节控制,模糊及PID带自动调节控制,PID自适应调节控制;7.再传输功能(选件):传感器测量值可以以4-20MA型式传送到PHR型数据记录仪,PLC及个人计算机中;8.8段斜坡/保温程序控制功能(选件);9.RS-485通讯功能(选件),可与FUJI POD及个人计算机通讯;10.数字输入控制功能(选件):通过一点开关量ON/OFF,可改变设定值SV,控制动作起/停,斜坡/保温控制的开始/ 复位,自动调节功能的起/停,报警锁存的复位、定时器计时开始;11. 加冷却控制(选件):有利于节能;12. 加热断线报警(选件);13. 两点各种报警功能(选件):绝对值报警区间报警偏差报警; 14. 具有塑机专用的模糊+PID控制功能:15. 内部定时器功能二、型号及尺寸PXR3 24×48×97 (高×宽×深)PXR5 96×48×78 (高×宽×深)PXR4 48×48×78.8 (高×宽×深)PXR9 96×96×79.5(高×宽×深)技术指标控制类型: PID 控制、on/off控制、自整定、模糊控制单输出或加热/制冷双