CN1020168C - 亚硝酸根离子的测定方法 - Google Patents
亚硝酸根离子的测定方法 Download PDFInfo
- Publication number
- CN1020168C CN1020168C CN 90102835 CN90102835A CN1020168C CN 1020168 C CN1020168 C CN 1020168C CN 90102835 CN90102835 CN 90102835 CN 90102835 A CN90102835 A CN 90102835A CN 1020168 C CN1020168 C CN 1020168C
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- gas
- absorption
- ultraviolet light
- sample
- determination method
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 90102835 CN1020168C (zh) | 1990-04-06 | 1990-04-06 | 亚硝酸根离子的测定方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 90102835 CN1020168C (zh) | 1990-04-06 | 1990-04-06 | 亚硝酸根离子的测定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1055603A CN1055603A (zh) | 1991-10-23 |
CN1020168C true CN1020168C (zh) | 1993-03-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 90102835 Expired - Fee Related CN1020168C (zh) | 1990-04-06 | 1990-04-06 | 亚硝酸根离子的测定方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1020168C (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101975756B (zh) * | 2010-10-15 | 2012-03-21 | 赵建平 | 一种分子光谱吸收法快速测定水中高锰酸盐指数的方法 |
CN113640239B (zh) * | 2021-08-24 | 2023-10-24 | 厦门大学深圳研究院 | 一种硝酸盐和亚硝酸盐的分光光度法检测方法 |
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1990
- 1990-04-06 CN CN 90102835 patent/CN1020168C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN1055603A (zh) | 1991-10-23 |
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Legal Events
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAOSHAN IRON AND STEEL GENERAL PLANT Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD |
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CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: BAOSHAN IRON & STEEL |
|
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |