Method for producing rapid pH changes
Abstract
A method of initiating a rapid pH change in a solution by irradiating the solution with an intense flux of electromagnetic radiation of a frequency which produces a substantial pK change to a compound in solution. To optimize the resulting pH change, the compound being irradiated in solution should have an excited state lifetime substantially longer than the time required to establish an excited state acid-base equilibrium in the solution. Desired pH changes can be accomplished in nanoseconds or less by means of picosecond pulses of laser radiation.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 863969
- Patent Number(s):
- 4287035
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; producing; rapid; ph; changes; initiating; change; solution; irradiating; intense; flux; electromagnetic; radiation; frequency; produces; substantial; pk; compound; optimize; resulting; irradiated; excited; lifetime; substantially; time; required; establish; acid-base; equilibrium; desired; accomplished; nanoseconds; means; picosecond; pulses; laser; time required; electromagnetic radiation; laser radiation; ph changes; ph change; rapid ph; intense flux; resulting ph; picosecond pulses; /204/
Citation Formats
Clark, John H, Campillo, Anthony J, Shapiro, Stanley L, and Winn, Kenneth R. Method for producing rapid pH changes. United States: N. p., 1981.
Web.
Clark, John H, Campillo, Anthony J, Shapiro, Stanley L, & Winn, Kenneth R. Method for producing rapid pH changes. United States.
Clark, John H, Campillo, Anthony J, Shapiro, Stanley L, and Winn, Kenneth R. Thu .
"Method for producing rapid pH changes". United States. https://www.osti.gov/servlets/purl/863969.
@article{osti_863969,
title = {Method for producing rapid pH changes},
author = {Clark, John H and Campillo, Anthony J and Shapiro, Stanley L and Winn, Kenneth R},
abstractNote = {A method of initiating a rapid pH change in a solution by irradiating the solution with an intense flux of electromagnetic radiation of a frequency which produces a substantial pK change to a compound in solution. To optimize the resulting pH change, the compound being irradiated in solution should have an excited state lifetime substantially longer than the time required to establish an excited state acid-base equilibrium in the solution. Desired pH changes can be accomplished in nanoseconds or less by means of picosecond pulses of laser radiation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}
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