会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Methods for quantitative analysis of asbestos in vermiculite-containing materials
    • 用于含蛭石材料中石棉的定量分析方法
    • US09291611B2
    • 2016-03-22
    • US13918071
    • 2013-06-14
    • RJ LEE GROUP, INC.
    • Richard J. LeeMatthew Spencer SanchezAlan M. Levine
    • G01N33/38G01N1/34
    • G01N33/38G01N1/34
    • A method for quantitative analysis of asbestos in vermiculite-containing materials includes a first embodiment which includes washing the sample with water or treating the sample with a low concentration acid to digest gypsum and carbonates, ashing the sample at a low temperature to remove cellulose, therefrom and analyzing the sample. Digestion may be effected before or after ashing. Subsequently, a second subsample may be ashed at low temperature to remove cellulose and refluxed with a concentrated acid followed by refluxing with a base and rinsing with deionized water to wash away gypsum, vermiculite and other soluble components. This is followed by analysis to determine asbestos concentration. In a further embodiment, the residue of the first embodiment may be employed as the second subsample.
    • 用于含蛭石的材料中的石棉的定量分析方法包括第一实施方案,其包括用水洗涤样品或用低浓度酸处理样品以消化石膏和碳酸盐,在低温下灰化样品以除去纤维素 并分析样品。 消化可能在灰化之前或之后进行。 随后,可以在低温下将第二子样品灰化以除去纤维素并与浓缩酸回流,然后与碱回流并用去离子水冲洗以洗去石膏,蛭石和其它可溶组分。 随后分析确定石棉浓度。 在另一实施例中,第一实施例的残留物可以用作第二子样品。
    • 7. 发明申请
    • METHODS FOR QUANTITATIVE ANALYSIS OF ASBESTOS IN VERMICULITE-CONTAINING MATERIALS
    • 含有矿物质的材料中ASBESTOS的定量分析方法
    • US20140370610A1
    • 2014-12-18
    • US13918071
    • 2013-06-14
    • RJ LEE GROUP, INC.
    • RICHARD J. LEEMatthew Spencer SanchezAlan M. Levine
    • G01N33/38G01N1/34
    • G01N33/38G01N1/34
    • A method for quantitative analysis of asbestos in vermiculite-containing materials includes a first embodiment which includes washing the sample with water or treating the sample with a low concentration acid to digest gypsum and carbonates, ashing the sample at a low temperature to remove cellulose, therefrom and analyzing the sample. Digestion may be effected before or after ashing. Subsequently, a second subsample may be ashed at low temperature to remove cellulose and refluxed with a concentrated acid followed by refluxing with a base and rinsing with deionized water to wash away gypsum, vermiculite and other soluble components. This is followed by analysis to determine asbestos concentration. In a further embodiment, the residue if the first embodiment may be employed as the second subsample.
    • 用于含蛭石的材料中的石棉的定量分析方法包括第一实施方案,其包括用水洗涤样品或用低浓度酸处理样品以消化石膏和碳酸盐,在低温下灰化样品以除去纤维素 并分析样品。 消化可能在灰化之前或之后进行。 随后,可以在低温下将第二子样品灰化以除去纤维素并用浓酸回流,然后与碱回流并用去离子水冲洗以洗去石膏,蛭石和其它可溶组分。 随后分析确定石棉浓度。 在另一个实施例中,如果第一实施例可以用作第二子样本,则残留物。