仪器简介:这种4元素火焰光度计增加了钙通道,除了可以直接测试This enhanced four-element flame photometer now features the addition of a calcium channel. In addition to the features available on the standard dual channel flame photometer, this new unit allows direct measurement of calcium with potassium, which are two vital elements for soil analysis after using Mehlich (111) extraction. Unit allows you to measure calcium in combination with sodium, and also with lithium without an internal standard. This flame photometer can be used as a detector in combination with multi-channel analyzers from Bran & Luebbe, Skalar, and Lachat. The system includes its own protocols for calibration, and includes a special mode allowing you to setup the flame photometer within these protocols. User selectable signal averaging is designed into the system allowing you to use these protocols along with analog output units. Features include automatic ignition sequence, lithium internal standard, monitoring and control software, dual-channel display, and independent calibration of each channel. An automatic gas shutoff mechanism activates if the flame is accidentally extinguished, or if air pressure drops. (Four-Element Flame Photometer shown with autosampler (02657-25) and automatic dilutor (02657-00) both sold separately.) 技术参数:测试范围: 全范围 1.00 to 9.99, 10.0 to 199.9mmol/L: as above except Li only 1.00 to 5.00 敏感度: Na & K = 0.5 ppmLi = 2 ppmCa = 5 ppm 特点: 当浓度等于测试样品浓度的时候干扰小于0.5%重现性 :小于 ±0.5% 线性: 小于 ±1% at midpoint with 3 ppm K+ set at 100 抽样速率 :3 to 6 mL/min. 可读稳定性软件显示: 3-1/2"digit LED, 1/2"H 两种输出方式: 50 mV to 7.5 V 通过软件命令空气需求: 6 l/min. 压强15 psi, 无油和水份.燃料提供:高等级丙烷,丁烷或者丙烷/丁烷混合物(大概30psi)天然气仅适合于单通道光度计电源: 120/240 VAC, 50/60 Hz (可转换) 尺寸 15-3/8"W x 20"H x 13-1/2"D 主要特点:1 提供准确的钠,钾,钙和锂的含量测定.2 额外的钙通道和锂内部标准.
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