JPWO2017199511A1 - 水質分析計 - Google Patents
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
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Abstract
Description
ABS = −log(IS/I0) (1)
F1 = (aX2+bX+c)×F0 (2)
a,b,c:定数
F2 = k×F1×exp((Aλ1+Aλ3)/2) (3)
k:定数
本発明の水質分析計は、測定対象となる試料水に励起用の光源光を照射する励起光照射光学系と、前記励起用の光源光の照射により励起された試料水中の特定成分の蛍光を検出する蛍光検出光学系と、試料水に散乱光検出用の光源光を照射する散乱光照射光学系と、前記散乱光検出用の光源光の照射により試料水中の微粒子で散乱された散乱光を検出する散乱光検出光学系と、を有し、前記励起光照射光学系の光量及び前記散乱光照射光学系の光量を検出可能であることを特徴とする。
Claims (15)
- 測定対象となる試料水に励起用の光源光を照射する励起光照射光学系と、前記励起用の光源光の照射により励起された試料水中の特定成分の蛍光を検出する蛍光検出光学系と、試料水に散乱光検出用の光源光を照射する散乱光照射光学系と、前記散乱光検出用の光源光の照射により試料水中の微粒子で散乱された散乱光を検出する散乱光検出光学系と、を有し、
前記励起光照射光学系の光量及び前記散乱光照射光学系の光量を検出可能であることを特徴とする水質分析計。 - 前記蛍光検出光学系が、前記散乱光照射光学系の光量を検出可能で且つ、前記散乱光検出光学系が、前記励起光照射光学系の光量を検出可能であるように配置されていることを特徴とする請求項1に記載の水質分析計。
- 前記励起光照射光学系と前記散乱光検出光学系が、試料水通水容器を挟んで対向しており、前記散乱光照射光学系と前記蛍光検出光学系が、前記試料水通水容器を挟んで対向していることを特徴とする請求項2に記載の水質分析計。
- 前記試料水通水容器内の中心で、前記励起光照射光学系の光軸と前記蛍光検出光学系の光軸とが垂直に交差し、前記散乱光照射光学系の光軸と前記散乱光検出光学系の光軸とが垂直に交差していることを特徴とする請求項3に記載の水質分析計。
- 前記励起光照射光学系の光軸と前記蛍光検出光学系の光軸との第1の交点と、
前記散乱光照射光学系の光軸と前記散乱光検出光学系の光軸との第2の交点とが、前記試料水通水容器内で離間していることを特徴とする請求項4に記載の水質分析計。 - 前記第1の交点と前記第2の交点との距離が、0mmより大きく10mm以下であることを特徴とする請求項5に記載の水質分析計。
- 前記励起用の光源光が試料水を透過した第1の透過光から前記励起用の光源光の第1の波長における試料水の吸光度を算出し、前記散乱光検出用の光源光が試料水を透過した第2の透過光から前記散乱光検出用の光源光の第2の波長における試料水の吸光度を算出し、前記第1の波長及び前記第2の波長における試料水の吸光度から前記蛍光の第3の波長における試料水の吸光度を予測する予測部を有することを特徴とする請求項2に記載の水質分析計。
- 前記第3の波長における試料水の吸光度は、前記第1の波長及び前記第2の波長における試料水の吸光度の絶対値と比率から予測されることを特徴とする請求項7に記載の水質分析計。
- 前記励起用の光源光が試料水を透過した第1の透過光及び前記散乱光検出用の光源光が試料水を透過した第2の透過光を検出する透過光検出光学系と、前記第1の透過光から前記励起用の光源光の第1の波長における試料水の吸光度を算出し、前記第2の透過光から前記散乱光検出用の光源光の第2の波長における試料水の吸光度を算出し、前記第1の波長及び前記第2の波長における試料水の吸光度から前記蛍光の第3の波長における試料水の吸光度を予測する予測部と、を有することを特徴とする請求項1に記載の水質分析計。
- 前記第3の波長における試料水の吸光度は、前記第1の波長及び前記第2の波長における試料水の吸光度の絶対値と比率から予測されることを特徴とする請求項9に記載の水質分析計。
- 前記第3の波長は、試料水中の前記特定成分の蛍光スペクトルのピーク波長であることを特徴とする請求項9または請求項10に記載の水質分析計。
- 前記散乱光検出光学系で検出された前記散乱光より測定された濁度を用いて、前記蛍光検出光学系で検出された前記蛍光の強度を補正することにより、濁度補正された蛍光強度を算出する濁度補正部を有することを特徴とする請求項9または請求項10に記載の水質分析計。
- 前記第1の波長における試料水の吸光度と、前記予測部で予測される第3の波長における試料水の吸光度とを用いて、前記濁度補正された蛍光強度を補正することにより、吸光度補正された蛍光強度を算出する吸光度補正部を有することを特徴とする請求項12に記載の水質分析計。
- 前記第1の波長は250nm以上350nm以下であり、且つ前記第2の波長は600nm以上900nm以下であり、且つ前記第3の波長は前記第1の波長以上であり前記第2の波長以下であることを特徴とする請求項9または請求項10に記載の水質分析計。
- 前記励起用の光源光及び前記散乱光検出用の光源光を前記試料水通水容器に導く位置に配置される光学部材を備え、前記光学部材と前記透過光検出光学系が、前記試料水通水容器を挟んで対向していることを特徴とする請求項9または請求項10に記載の水質分析計。
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JP2016100435 | 2016-05-19 | ||
JP2016100435 | 2016-05-19 | ||
PCT/JP2017/006951 WO2017199511A1 (ja) | 2016-05-19 | 2017-02-23 | 水質分析計 |
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JPWO2017199511A1 true JPWO2017199511A1 (ja) | 2018-08-16 |
JP6436266B2 JP6436266B2 (ja) | 2018-12-12 |
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JP (1) | JP6436266B2 (ja) |
KR (1) | KR102444477B1 (ja) |
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CN109060697A (zh) * | 2018-10-24 | 2018-12-21 | 深圳市长隆科技有限公司 | 自动选择检测波长的水质参数分析仪 |
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JP6436266B2 (ja) | 2018-12-12 |
WO2017199511A1 (ja) | 2017-11-23 |
KR20190010522A (ko) | 2019-01-30 |
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DK3355048T3 (da) | 2021-07-12 |
CN108351304A (zh) | 2018-07-31 |
US10302564B2 (en) | 2019-05-28 |
EP3355048A4 (en) | 2018-08-01 |
KR102444477B1 (ko) | 2022-09-16 |
US20180246035A1 (en) | 2018-08-30 |
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