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    • 6. 发明授权
    • Automated protein analyzer
    • 自动蛋白分析仪
    • US09091632B2
    • 2015-07-28
    • US14038900
    • 2013-09-27
    • CEM Corp.
    • Michael J Collins, Sr.Joseph J LambertTimothy A ZawatskyDavid L Herman
    • G01N33/00G01N1/00G01N21/17G01N33/68G01N21/25G01N1/28G01N35/10G01N33/12G01N1/40
    • G01N33/6839G01N1/286G01N21/17G01N21/251G01N33/12G01N33/6803G01N35/1095G01N2001/4088Y10T436/10Y10T436/105831Y10T436/25
    • A dye binding method for protein analysis is disclosed. The method includes the steps of preparing an initial reference dye solution of unknown concentration from an initial reference dye concentrate and creating an electronic signal based upon the absorbance of the initial reference dye solution. Thereafter, an electronic signal is created based upon the absorbance of a dye filtrate solution prepared from the initial reference dye solution and an initial protein sample. The absorbance signals from the reference dye solution and the dye filtrate solution are sent to a processor that compares the respective absorbances and calculates the protein content of the protein sample based upon the difference between the absorbances. An electronic signal is created based upon the absorbance of a successive dye filtrate solution prepared from the reference dye solution and a successive protein sample, and the absorbance signal from the successive sample dye filtrate solution is sent to the processor to calculate the protein content of the successive sample based upon the difference between the absorbance of the initial reference dye solution and the absorbance of the successive dye filtrate solution.
    • 公开了用于蛋白质分析的染料结合方法。 该方法包括以下步骤:从初始参考染料浓缩物制备未知浓度的初始参考染料溶液,并基于初始参考染料溶液的吸光度产生电子信号。 此后,基于由初始参考染料溶液和初始蛋白质样品制备的染料滤液的吸光度,产生电子信号。 将来自参考染料溶液和染料滤液的吸光度信号送至处理器,该处理器根据吸光度之差来比较各吸光度,并计算蛋白质样品的蛋白质含量。 基于由参考染料溶液和连续蛋白质样品制备的连续染料滤液的吸光度产生电子信号,并将来自连续样品染料滤液的溶液的吸光度信号发送到处理器,以计算蛋白质含量 基于初始参考染料溶液的吸光度与连续的染料滤液的吸光度之间的差异的连续样品。
    • 7. 发明授权
    • Colorimetric protein analysis method
    • 比色蛋白分析法
    • US08852948B2
    • 2014-10-07
    • US12185575
    • 2008-08-04
    • Michael J. Collins, Sr.Joseph J. LambertTimothy A. ZawatskyDavid L. Herman
    • Michael J. Collins, Sr.Joseph J. LambertTimothy A. ZawatskyDavid L. Herman
    • G01N33/00G01N21/00G01N33/68G01N33/52
    • G01N33/6803G01N33/52
    • A protein analysis instrument and method are disclosed. The method includes mixing a binding dye composition and a protein sample using a homogenizer, measuring a parameter selected from the group consisting of the speed of the homogenizer and the resistance of the mixture to the homogenizer, adjusting the speed of the homogenizer based upon the measured parameter, pumping unreacted dye composition from the mixture and to a calorimeter, and measuring the absorbance of the dye composition in the calorimeter. Aspects of the invention also include inserting a spout into a sample cup at a position where the spout opening is positioned to avoid foam and precipitate generated by the mixing step and above the bottom of the sample cup and thereafter pumping the dye composition from the mixture in the sample cup through the spout and to a colorimeter.
    • 公开了一种蛋白质分析仪器和方法。 该方法包括使用均化器混合结合染料组合物和蛋白质样品,测量选自均化器的速度和混合物对均化器的电阻的参数,基于测量的调节匀浆器的速度 参数,从混合物和比色计中抽出未反应的染料组合物,并测量色度计中染料组合物的吸光度。 本发明的方面还包括将喷口插入样品杯中,在出口开口的位置处,以避免由混合步骤产生的泡沫和沉淀,并且在样品杯的底部之上,然后从混合物中抽出染料组合物 样品杯通过喷口和色度计。
    • 10. 发明授权
    • Dual energy source loss-on-drying instrument
    • 双能量损耗干燥仪
    • US07997790B2
    • 2011-08-16
    • US12508648
    • 2009-07-24
    • Robert N. ReveszMichael J. Collins, Sr.
    • Robert N. ReveszMichael J. Collins, Sr.
    • G01N25/00G01J5/00
    • G01N5/045G01N1/44
    • An instrument and associated method are disclosed for the loss-on-drying determination of the volatile content of a wide variety of samples. The instrument includes a cavity in which a sample for which the volatile content is to be determined can be placed, a first source for introducing microwaves into the cavity that have frequencies substantially other than infrared frequencies, a second source for introducing radiant heat into the cavity at frequencies different from the frequencies introduced by the first source, an analytical balance for measuring the weight of a sample while the sample is in the cavity and on the balance, a temperature sensor capable of measuring and positioned to measure the temperature of a sample in the cavity and on the balance, and a processor in communication with the temperature sensor and each of the first and second sources for controlling the introduction of the frequencies of microwave and radiant energy into the cavity in response to the temperatures measured by the temperature sensor to control the sample temperature until the microwaves from the first source and the radiant heat from the second source dry the sample sufficiently for the processor to determine the volatile content of the sample based on the weight change of the sample on the balance.
    • 公开了用于各种样品的挥发物含量的干燥损失测定的仪器和相关方法。 该仪器包括其中可以放置要确定挥发物含量的样品的空腔,用于将微波引入具有基本上不同于红外频率的频率的空腔的第一源,用于将辐射热引入腔中的第二源 在与第一源引入的频率不同的频率处,用于测量样品在腔中和平衡时的重量的分析天平,能够测量和定位以测量样品的温度的温度传感器 空腔和平衡部,以及与温度传感器和第一和第二源中的每一个通信的处理器,用于响应于由温度传感器测量的温度而将微波和辐射能的频率引入空腔中 控制样品温度,直到来自第一个来源的微波和来自th的辐射热 第二来源充分干燥样品以使处理器基于样品在天平上的重量变化来确定样品的挥发性含量。