Colorimetric derivatization of ambient ammonia (NH3) for detection by long-path absorption photometry

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Abstract 3). We developed an online NH3 monitoring system – salicylic acid derivatization reaction and long-path absorption photometer (SAC-LOPAP) – based on a selective colorimetric reaction to form a highly absorbing reaction product and a LOPAP, which could run stably for a long time and be applied to the continuous online measurement of low concentrations of ambient NH3 by optimizing the reaction conditions, adding a constant-temperature module and liquid flow controller. The detection limit reached with this instrument was 40.5 parts per trillion (ppt) with a stripping liquid flow rate of 0.49 mL min- 1 - 1 R 2 3.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Colorimetric derivatization of ambient ammonia (NH₃) for detection by long-path absorption photometry ; volume:16 ; number:22 ; year:2023 ; pages:5525-5535 ; extent:11
Atmospheric measurement techniques ; 16, Heft 22 (2023), 5525-5535 (gesamt 11)

Creator: Tian, Shasha
Zu, Kexin
Dong, Huabin
Zeng, Limin
Lu, Keding
Chen, Qi

DOI: 10.5194/amt-16-5525-2023

URN: urn:nbn:de:101:1-2023112303243470611604

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:23 AM CEST

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Tian, Shasha
Zu, Kexin
Dong, Huabin
Zeng, Limin
Lu, Keding
Chen, Qi

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Colorimetric derivatization of ambient ammonia (NH<sub>3</sub>) for detection by long-path absorption photometry

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Other Objects (12)

Data assimilation of CrIS-NH<sub>3</sub> satellite observations for improving spatiotemporal NH<sub>3</sub> distributions in LOTOS-EUROS

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Measurement report: Emission factors of NH<sub>3</sub> and NH<sub>x</sub> for wildfires and agricultural fires in the United States

Measurement report: Emission factors of NH<sub>3</sub> and NH<sub><italic>x</italic></sub> for wildfires and agricultural fires in the United States

Surfactant-Encapsulated Clusters (SECs): (DODA)<sub>20</sub>(NH<sub>4</sub>)[H<sub>3</sub>Mo<sub>57</sub>V<sub>6</sub>(NO)<sub>6</sub>O<sub>183</sub>(H<sub>2</sub>O)<sub>18</sub>], a Case Study

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The IASI NH<sub>3</sub> version 4 product: averaging kernels and improved consistency

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The effect of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> on the freezing properties of non-mineral dust ice-nucleating substances of atmospheric relevance

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Measurement report: Emission factors of NH<sub>3</sub> and NH<sub>x</sub> for wildfires and agricultural fires in the United States

Measurement report: Emission factors of NH<sub>3</sub> and NH<sub><italic>x</italic></sub> for wildfires and agricultural fires in the United States

Surfactant-Encapsulated Clusters (SECs): (DODA)<sub>20</sub>(NH<sub>4</sub>)[H<sub>3</sub>Mo<sub>57</sub>V<sub>6</sub>(NO)<sub>6</sub>O<sub>183</sub>(H<sub>2</sub>O)<sub>18</sub>], a Case Study

Quantification of ion migration in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite solar cells by transient capacitance measurements

The IASI NH<sub>3</sub> version 4 product: averaging kernels and improved consistency

The IASI NH<sub>3</sub> version 4 product: averaging kernels and improved consistency

Assessing the Effectiveness of SO<sub>2</sub>, NOx, and NH<sub>3</sub> Emission Reductions in Mitigating Winter PM<sub>2.5</sub> in Taiwan Using CMAQ Model

The effect of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> on the freezing properties of non-mineral dust ice nucleating substances of atmospheric relevance

The effect of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> on the freezing properties of non-mineral dust ice-nucleating substances of atmospheric relevance

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Measurement report: Emission factors of NH<sub>3</sub> and NH<sub>x</sub> for wildfires and agricultural fires in the United States

Measurement report: Emission factors of NH<sub>3</sub> and NH<sub><italic>x</italic></sub> for wildfires and agricultural fires in the United States

Surfactant-Encapsulated Clusters (SECs): (DODA)<sub>20</sub>(NH<sub>4</sub>)[H<sub>3</sub>Mo<sub>57</sub>V<sub>6</sub>(NO)<sub>6</sub>O<sub>183</sub>(H<sub>2</sub>O)<sub>18</sub>], a Case Study

Quantification of ion migration in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite solar cells by transient capacitance measurements

The IASI NH<sub>3</sub> version 4 product: averaging kernels and improved consistency

The IASI NH<sub>3</sub> version 4 product: averaging kernels and improved consistency

Assessing the Effectiveness of SO<sub>2</sub>, NOx, and NH<sub>3</sub> Emission Reductions in Mitigating Winter PM<sub>2.5</sub> in Taiwan Using CMAQ Model

The effect of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> on the freezing properties of non-mineral dust ice nucleating substances of atmospheric relevance

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NH<sub>3</sub> spatio-temporal variability over Paris, Mexico and Toronto and its link to PM<sub>2.5</sub> during pollution events

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