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m-cresol purple (68) 68
oceanography (60) 60
ocean acidification (57) 57
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hydrogen-ion concentration (48) 48
spectrophotometry (43) 43
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Environmental Science & Technology, ISSN 0013-936X, 06/2011, Volume 45, Issue 11, pp. 4862 - 4868
Journal Article
Marine Chemistry, ISSN 0304-4203, 03/2017, Volume 190, pp. 66 - 72
For best accuracy, spectrophotometric characterizations of seawater pH are obtained using a purified pH-sensitive dye—usually meta-cresol purple (mCP) for... 
Spectrophotometry | GOA-ON | m-cresol purple | RED | OCEANOGRAPHY | PURIFICATION | SEAWATER | CHEMISTRY, MULTIDISCIPLINARY | IN-SITU | SEA | OCEAN ACIDIFICATION | Measurement | Weather | Algorithms | Analysis | Hydrogen-ion concentration | Ocean acidification | Sea-water
Journal Article
Scientific Reports, ISSN 2045-2322, 12/2017, Volume 7, Issue 1, pp. 2481 - 11
Accurate pH measurements in polar waters and sea ice brines require pH indicator dyes characterized at near-zero and below-zero temperatures and high... 
ANTARCTIC SEA-ICE | ANTHROPOGENIC CO2 | IMPACT | CARBON | MULTIDISCIPLINARY SCIENCES | PURIFICATION | BRINE | SEAWATER | ARCTIC-OCEAN | OCEAN ACIDIFICATION | TRIS BUFFERS | Cresol | Dyes | Brines | Salinity effects | pH effects | Spectrophotometry | Freezing | Sea ice | Salinity | Seawater
Journal Article
Marine Chemistry, ISSN 0304-4203, 03/2013, Volume 150, pp. 19 - 24
Impurities in sulphonephthalein indicator salts can result in significant errors in seawater pH determinations. To ensure suitable measurement accuracy and... 
Spectroscopic techniques | Purification | Cresol red | Sulphonephthalein | Ocean acidification | Indicators | Meta-cresol purple | Seawater | FUGACITY | CHEMISTRY, MULTIDISCIPLINARY | PRECISION | OCEANOGRAPHY | TOTAL INORGANIC CARBON | Measurement | Liquid chromatography | Water acidification | Hydrogen-ion concentration | Sea-water | Impurities | Cresols | Buffers | Sea water | Chromatography | pH
Journal Article
Marine Chemistry, ISSN 0304-4203, 12/2013, Volume 157, pp. 162 - 169
The sulfonephthalein indicator meta-Cresol Purple ( CP) is well suited to direct spectrophotometric pH measurements throughout the oceanic water column. In... 
Pressure effects | Ocean acidification | Sea water | Spectrophotometric techniques | meta-Cresol Purple | Meta-Cresol Purple | THYMOL BLUE | CO2 | BORIC-ACID | CONSTANT | CO2-SYSTEM CHARACTERIZATIONS | CHEMISTRY, MULTIDISCIPLINARY | PRECISION | SEA-WATER | THERMODYNAMICS | DISSOCIATION | OCEANOGRAPHY | IN-SITU | Measurement | Hydrogen-ion concentration | Sea-water
Journal Article
Marine Chemistry, ISSN 0304-4203, 12/2017, Volume 197, pp. 64 - 69
The indicator meta-cresol purple (mCP) has been widely used for spectrophotometric pH measurements in seawater and has been recently used in freshwater as... 
m-Cresol Purple | Spectrophotometry | Estuary | Freshwater
Journal Article
Deep-Sea Research Part I, ISSN 0967-0637, 1993, Volume 40, Issue 10, pp. 2115 - 2129
Spectrophotometric open-ocean seawater pH measurements are simple, fast and precise. The sulfonephthalein indicator m-cresol purple (mCP) is recommended for... 
RED | MEDIA | STANDARD BUFFERS | OCEANOGRAPHY | WATER | Measurement | Cresol | Usage | Spectrophotometer | Equipment and supplies | Oceanography | Research | Hydrogen-ion concentration
Journal Article
Marine Chemistry, ISSN 0304-4203, 12/2017, Volume 197, pp. 64 - 69
The indicator meta-cresol purple (mCP) has been widely used for spectrophotometric pH measurements in seawater and has been recently used in freshwater as... 
m-Cresol Purple | Spectrophotometry | Estuary | Freshwater | THYMOL BLUE | SEAWATER PH | CHEMISTRY, MULTIDISCIPLINARY | META-CRESOL PURPLE | OCEAN ACIDIFICATION | PRECISION | INDICATORS | OCEANOGRAPHY | PURIFICATION | FRESH-WATER PH | PHENOL RED | IN-SITU | Estuaries | Rivers | Hydrogen-ion concentration | Analysis | Sea-water | Salinity
Journal Article
Limnology and Oceanography: Methods, ISSN 1541-5856, 04/2014, Volume 12, Issue 4, pp. 191 - 195
High biomass and heavy particle loads may interfere with carbonate chemistry analyses of samples from experimental aquaria and cultures used to investigate the... 
SYSTEM | TOTAL ALKALINITY | OCEANOGRAPHY | GROWTH | LIMNOLOGY | CRESOL PURPLE | OCEAN ACIDIFICATION
Journal Article
Limnology and Oceanography, ISSN 0024-3590, 11/2017, Volume 62, Issue S1, pp. S112 - S130
Globally, estuaries are considered important CO2 sources to the atmosphere. However, estuarine water carbonate chemistry and CO2 flux studies have focused on... 
DISSOLVED INORGANIC CARBON | COASTAL OCEAN | TOTAL ALKALINITY | OCEANOGRAPHY | SEAWATER PH MEASUREMENTS | ECOSYSTEM METABOLISM | SEASONAL-VARIATION | TOMALES BAY | GAS-EXCHANGE | LIMNOLOGY | CRESOL PURPLE | OCEAN ACIDIFICATION
Journal Article
Biogeosciences, ISSN 1726-4170, 2009, Volume 6, Issue 11, pp. 2421 - 2432
In the summer of 2005, we sampled surface water and measured pH and total alkalinity (A(T)) underway aboard IB Oden along the Northwest Passage from Cape... 
SEA-WATER | VARIABILITY | CHUKCHI SEAS | GEOSCIENCES, MULTIDISCIPLINARY | ACID | M-CRESOL PURPLE | CO2 | ION CONCENTRATION | ECOLOGY | SEAWATER | DISSOCIATION-CONSTANTS
Journal Article
Marine Chemistry, ISSN 0304-4203, 09/2013, Volume 155, pp. 158 - 164
Journal Article
Analytica Chimica Acta, ISSN 0003-2670, 12/2019, Volume 1090, pp. 91 - 99
Thymol blue (TB) is one of a suite of indicator dyes appropriate for spectrophotometric determinations of the pH of aqueous solutions. For measurements of... 
Spectrophotometric pH | Absorbance ratios | Thymol blue purification | Estuarine conditions | CALIBRATION | CHEMISTRY, ANALYTICAL | INTERNAL CONSISTENCY | SEAWATER | META-CRESOL PURPLE | PRECISION | RED | BUFFERS | FRESH-WATER PH | Measurement | Phytochemistry | Estuaries | Phenols | Photosynthesis | Hydrogen-ion concentration | Sea-water | Chromatography | Salinity
Journal Article
Soil Science Society of America Journal, ISSN 0361-5995, 11/2017, Volume 81, Issue 6, pp. 1350 - 1358
Soil pH measurement using conventional glass electrodes has several limitations. A spectrophotometric method was developed for determining soil pH involving... 
FRESH-WATER PH | PHENOL RED | ACTIVITY-COEFFICIENTS | SOIL SCIENCE | IONIC-STRENGTH | M-CRESOL PURPLE | Measurement | Usage | Electrodes, Ion selective | Soil acidity | Research | Hydrogen-ion concentration | Spectrophotometry
Journal Article
Environmental Science and Technology, ISSN 0013-936X, 04/2015, Volume 49, Issue 7, pp. 4441 - 4449
A new, in situ sensing system, Channelized Optical System (CHANOS), was recently developed to make high-resolution, simultaneous measurements of total... 
CALIBRATION | ENVIRONMENTAL SCIENCES | ENGINEERING, ENVIRONMENTAL | CO2 | CORE WAVE-GUIDE | FUTURE | CRESOL PURPLE | SEA | OCEAN ACIDIFICATION | Seawater - analysis | Spectrophotometry - instrumentation | Carbon - analysis | Seawater - chemistry | Spectrophotometry - methods | Equipment Design | Hydrogen-Ion Concentration
Journal Article
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