Sample Preparation
Sampling and sample preparation of refractory metals such as titanium and zirconium is somewhat different from that of steel. Unlike steel samples, hydrogen is not as mobile in this group of materials; therefore, storage in liquid nitrogen or dry ice is not required. However, it is important to keep the sample cool when cutting or sectioning. Sample preparation for oxygen and nitrogen determination has beendifferent from that of hydrogen determination.
力可创新的批次和重复样品数据分组功能极大简化了样品结果输出和结果标准偏差的自动计算。湖南元素分析仪价格
Sample Preparation
Sampling and sample preparation is an important issue because traditional methods used to obtain samples for oxygen and nitrogen determination are different from those recommended for hydrogen, especially when sampling molten metal. The main difference in steel sampling procedures for oxygen/nitrogen and hydrogen is due to the mobilityof hydrogen. Special precautions must be used when sampling for hydrogen. From molten steel and iron, a sample must be quickly quenched in cold water and chilled in a refrigerant such as liquefied nitrogen or a mixture of acetone and solid carbon dioxide in order to reduce losses of hydrogen from diffusion. Losses of oxygen and nitrogen from diffusion are not a problem. A sample that is taken for hydrogen and
chilled in a refrigerant can also be used for oxygen and nitrogen determination. However, a sample that is typically taken for oxygen and/or nitrogen determination is not suitable for hydrogen determination due to hydrogen loss (diffusion). Surface contamination must be removed by filing or light grinding, using care not to overheat the sample.
江苏元素分析仪厂家报价***触摸屏技术,用户友好界面软件进行校正、分析、诊断等。
Procedure - Solid Samples
Instrument calibration/drift correction.
Place the calibration/drift standard in a *** Nickel Basket, and if applicable, place the sample into the appropriate autoloader position.
Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open.
Note: samples using automation should be placed in the appropriate autoloader position before starting the
analysis sequence. Once the sequence has started, the automatic analysis will start and end automatically.
Procedure – Powder/Chip Samples
Prepare the instrument as outlined in the operator's instruction manual.
Login a minimum of three Blank reps.
Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open. Insert a *** Nickel Capsule (leave capsule open) into the open port at top of loading head.
Note: samples using automation should be placed in the appropriate autoloader position before starting the analysis sequence. Once the sequence has started, the automatic analysis will start and end automatically.
User-Friendly Brand Software Cornerstone
LECO's exclusive brand software enables the user to have complete access to analysis Cornerstone control, method settings, diagnostics, reporting, and more in a highly organized and immersive environment. Designed through a collaboration of customer feedback and innovative engineering,Cornerstone allows the user to conduct all of their day-to-day operations within a single Analysis screen designed for speed and ease-of-use. Our innovative grouping of sample data into sets and replicates simplifies the data output and automatically calculates relevant statistics, alleviating the need for additional data processing.
试样加载过程中完全密闭,消除大气的中可能带来的杂质的污染。山东美国LECO氧氮氢分析仪采购
稳固的炉头试样加载结构。湖南元素分析仪价格
氧氮氢分析仪的常见故障及解决方法
供电正常、通讯正常,点击确认键后分析仪不工作。这是没有水流,炉子温度太高或仪器通道电压不正常。如没有水流,炉子温度太高这些信息会显示在显示器画面上,但没有信息显示说明这两项正常。接下来检查仪器通道零位电压,如果比±3V高出1V以上,可能是因为气瓶空了,或者是空气进入到分析仪中。检查并更换化学试剂,如果有空气进入热导池里,热导池的电压就会<-6V,此时打开右面的门,堵住炉子气体进口,10s后,热导池电压值必然升高。经过逐一排查,**终确认碱石棉有问题,更换后仪器正常。 湖南元素分析仪价格
上海禹重实业有限公司是一家从事仪器科技、医疗科技、检测科技领域内的技术咨询、技术服务,仪器仪表的修理,仪器仪表、实验室设备、机械设备及配件、机电设备及配件、电子产品、化工产品及原料(除危险化学品、监控化学品、烟花爆竹、民用易爆物品、易制毒化学品)、第二类医疗器械的销售,机械设备租赁,电子商务,货物进出口,技术进出口。的公司,致力于发展为创新务实、诚实可信的企业。禹重科技深耕行业多年,始终以客户的需求为向导,为客户提供***的光谱仪,色谱仪,质谱仪,样品前处理。禹重科技致力于把技术上的创新展现成对用户产品上的贴心,为用户带来良好体验。禹重科技创始人胡景娜,始终关注客户,创新科技,竭诚为客户提供良好的服务。
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