Procedure - Solid Samples
Determine the instrument blank.
Repeat steps 2b through 2g a minimum of three times.
Set the blank following the procedure outlined in the operator's instruction manual.
Instrument calibration/drift correction.
Login a minimum of 3 Standard replicates.
Weigh approximately *** grams of a calibration/drift standard, enter the mass and standard identification into appropriate replicate fields.
Note: LECO Reference Materia***o not require preparation.See preparation statement on the reference material certificate.
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。上海分析仪咨询报价
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.
山西元素分析仪改进的红外检测池技术。
力可ONH836氧氮氢分析仪
特征
稳固的炉头试样加载结构
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；
简化日常分析所需的炉头进样部分机械维护工作。
可选的自动功能
上下电极自动清扫装置；
20位试样及坩埚自动进样装置。
附加功能及优点
可选六轴可旋转触摸屏幕，增强了操作的工效和直观性；
可选具有压力补偿和温度控制性能的标气检测气路；
新型气路管道减少气路连接阀，使得漏气，断路故障更少；
配置SmartLine Remote远程诊断功能。
Method Selection
Two methods are described in this application note; either method can be used to analyze iron, steel, nickel-, and cobalt-base alloys. The Precision Method is recommended for general use and will provide the best precision and accuracy throughout the typical O, N, and H concentrations found in this group of metals; approximate cycle time is 3.5 minutes. The Fast Track method can be used where speed of analysis is a critical component; for example, when molten metal is being sampled and results are required in the shortest possible time. This method will produce suitable results for most samples; approximate cycle time is 2.25 minutes. As noted above, sampling and sample preparation are key elements to accurate O, N, and Hdetermination as well. It is up to the user to determine which method best meets their needs.
氧高低双量程采用3个碳红外检测一氧化碳和二氧化碳，保证准确定量。
Procedure - Solid Samples
Instrument calibration/drift correction.
Add approximately 0.05 g of *** Graphite Powder to a *** Graphite Crucible.
Firmly place the crucible on the lower electrode tip or appropriate autoloader position.
Press the Analyze button on the instrument screen, the lower electrode will close and the analysis sequence will start and end automatically.
Repeat steps 3b through 3j a minimum of three times for each calibration/drift standard used.
Calibrate/drift following the procedure outlined in the operator's instruction manual.
20位或100位全自动分析系统。上海分析仪咨询报价
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