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公开(公告)号：US20160018376A1
公开(公告)日：2016-01-21
申请号：US14721960
申请日：2015-05-26
Applicant: HACH COMPANY
Inventor： Ramon Hammerschmidt
IPC: G01N33/18
CPC classification number: G01N33/1846 , G01N21/272 , G01N21/3504 , G01N21/61 , G01N21/75 , Y10T436/204998 , Y10T436/235
Abstract: A method for determining the total organic carbon in a sample which includes mixing the sample with a reagent containing at least one acid effective for reacting with inorganic carbon-containing materials in the sample, and at least one oxidizing agent effective for oxidizing organic carbon-containing materials in the sample in the presence of ultraviolet radiation, and detecting the carbon dioxide generated, is described. The at least one acid may include phosphoric acid, while the oxidizing agent may include sodium persulfate. In accordance with an embodiment of the inventive concept, the sample is first injected into a reaction chamber, which is continuously flushed with carbon dioxide free gas with no UV light present, and CO2 generated from any inorganic carbon in the sample as carbonates is flowed through the detector, and may be recorded. Subsequent to this step, the UV light is passed through the reaction chamber and CO2 generated from the reaction of the at least one oxidizing agent with the organic material in the solution in the presence of ultraviolet radiation, is flowed through the detector, which may be a non-dispersive infrared detector, after the reaction chamber is sparged using a carbon dioxide free gas, and recorded.
Abstract translation: 一种测定样品中总有机碳的方法，其包括将样品与含有至少一种有效用于与样品中的无机含碳材料反应的酸的试剂混合，以及至少一种有效氧化有机碳的氧化剂 描述了在紫外辐射存在下样品中的材料和检测所产生的二氧化碳。 所述至少一种酸可以包括磷酸，而氧化剂可以包括过硫酸钠。 根据本发明构思的一个实施例，首先将样品注入到反应室中，该反应室用不含紫外光的无二氧化碳气体连续冲洗，并且随着碳酸盐流过样品中任何无机碳产生的CO 2 检测器，并且可以被记录。 在该步骤之后，UV光通过反应室，并且在紫外线辐射的存在下，由至少一种氧化剂与溶液中的有机材料的反应产生的CO 2流过检测器，该检测器可以是 在使用无二氧化碳气体喷射反应室之后，记录非分散红外检测器。
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公开(公告)号：US09791430B2
公开(公告)日：2017-10-17
申请号：US14721960
申请日：2015-05-26
Applicant: HACH COMPANY
Inventor： Ramon Hammerschmidt
CPC classification number: G01N33/1846 , G01N21/272 , G01N21/3504 , G01N21/61 , G01N21/75 , Y10T436/204998 , Y10T436/235
Abstract: A method for determining the total organic carbon in a sample which includes mixing the sample with a reagent containing at least one acid effective for reacting with inorganic carbon-containing materials in the sample, and at least one oxidizing agent effective for oxidizing organic carbon-containing materials in the sample in the presence of ultraviolet radiation, and detecting the carbon dioxide generated, is described. The at least one acid may include phosphoric acid, while the oxidizing agent may include sodium persulfate. In accordance with an embodiment of the inventive concept, the sample is first injected into a reaction chamber, which is continuously flushed with carbon dioxide free gas with no UV light present, and CO2 generated from any inorganic carbon in the sample as carbonates is flowed through the detector, and may be recorded. Subsequent to this step, the UV light is passed through the reaction chamber and CO2 generated from the reaction of the at least one oxidizing agent with the organic material in the solution in the presence of ultraviolet radiation, is flowed through the detector, which may be a non-dispersive infrared detector, after the reaction chamber is sparged using a carbon dioxide free gas, and recorded.
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