Detection of Chemical Composition of Sea Water Based on Gaussian Wavelet

2019 ◽  
Vol 83 (sp1) ◽  
pp. 17
Author(s):  
Xiaofei Zhang ◽  
Ruifa Jin
Keyword(s):  
Chemical Composition ◽  
Sea Water ◽  
Water Based

scholarly journals Sea Water-Based Medicines: Manufacturing Technology and Standardisation

2020 ◽  
Vol 10 (4) ◽  
pp. 228-234
Author(s):  
N. S. Tereshina ◽  
M. N. Lyakina ◽  
O. A. Naumova
Keyword(s):  
Quality Control ◽  
Chemical Composition ◽  
Sea Water ◽  
Quality Standard ◽  
Test Methods ◽  
Sea Salt ◽  
Chemical Test ◽  
Qualitative And Quantitative ◽  
Current Test ◽  
Water Based

Sea water and sea salt obtained from it are widely used as substances in the production of medicinal products. Complex chemical composition of sea water which contains various salts, calls for the development of a common quality standard for sea water-based medicines. The aim of the study was to analyse and summarise available data on the sources of sea water-based medicines, and on the current test methods, as well as to develop a unified approach to quality control. The paper summarises information on the use of sea water for medical purposes. It presents comparative data on the chemical composition of sea water obtained from different sources, manufacturing technologies of sea water-based medicines, and composition of medicines produced from sea water or sea salt. The paper summarises data on the use of sea water for the production of various dosage forms: drops, sprays, aerosols. The study revealed qualitative and quantitative differences in the content of major cations and anions in drug products. The authors analysed the use of various chemical and physico-chemical test methods for qualitative and quantitative characterisation of medicines. It was concluded that there is a need to harmonise quality control methods for sea water-based medicines.

scholarly journals Phase Relationships in Sea Ice as a Function of Temperature

1976 ◽  
Vol 17 (77) ◽  
pp. 507-519 ◽  
Author(s):  
C. Richardson
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Sea Ice ◽  
Sea Water ◽  
Tabular Form ◽  
Nuclear Magnetic Resonance Spectrometer ◽  
Quantitative Measurements ◽  
Water Based ◽  
Eutectic Concentration ◽  
Phase Relationships

Quantitative measurements of the liquid water phase in a sample of sea ice were made with a nuclear magnetic resonance spectrometer. The measurements are used to compute the phase relationships in sea ice as a function of temperature. A model for sea-water based upon a mixture of seven binary salts is used for these computations. The n.m.r. measurements are related to the solvation water which is associated with each binary salt. This solvation water is bound to the salt in a pseudo-crystalline structure, with the amount of water determined by the eutectic concentration of the salt. The results are given in tabular form and differ somewhat from previously published tables. Two controversial hydrated salts were added to the table, based on the n.m.r. data.

11. On the Chemical Composition of the Water composing the Clyde Sea Area

1888 ◽  
Vol 14 ◽  
pp. 422-427
Author(s):  
Adam Dickie
Keyword(s):  
Chemical Composition ◽  
Sea Water ◽  
Physical Conditions ◽  
Freshwater Stream ◽  
Marine Station ◽  
The Government ◽  
Government Grant ◽  
Clyde Sea ◽  
Sea Area

About the beginning of this year I was requested by a sub-committee of the Government Grant Committee* to determine some of the components of a series of samples of sea water, which were to be collected during the year at various parts and at different times in the Clyde sea area by the observers of the Scottish Marine Station. The collections were chiefly made under the immediate direction of Dr H. E. Mill. Since January, accordingly, I have been working at this, and have completed in all eighty-nine analyses, the results of which I now take the liberty of placing before this Society. There are various reasons why this paper should consist of little more than tables of results, one of which is that, having little or no experience in the science of oceanography, it would be presumptuous in me to draw conclusions from my results which would no doubt strike any one acquainted with that science at once. Another reason is that, though acquainted with some of the physical conditions under which the samples were taken, such as depth, temperature, place of collection, and date, I am quite ignorant of other conditions quite as important, if not more so, in my estimation, as, for instance, presence or absence of some freshwater stream near place of collection, state of tide, raiafall, 'c,—all conditions which would no doubt influence more or less materially the salinity of the water.

Growth and Chemical Composition of Chum (Oncorhynchus keta) and Sockeye (O. nerka) Salmon Fry Produced in Spawning Channel and Natural Environments

1970 ◽  
Vol 27 (2) ◽  
pp. 371-382 ◽  
Author(s):  
W. E. Vanstone ◽  
J. R. Markert ◽  
D. B. Lister ◽  
M. A. Giles
Keyword(s):  
Chemical Composition ◽  
Sockeye Salmon ◽  
Chum Salmon ◽  
Sea Water ◽  
Chemical Constituents ◽  
Total Weight ◽  
Oncorhynchus Keta ◽  
Natural Environments ◽  
Rates Of Change ◽  
Rate Of Increase

A comparison was made of the weights, lengths, weight–length relations, and chemical composition in migrating chum and sockeye fry resulting from eggs incubated and hatched in natural and artificial streams. Additionally, growth rates and rates of change in some chemical constituents were investigated in postmigrant channel- and river-hatched chum salmon confined to floating pens in sea water and in postmigrant sockeye salmon captured from their lake nursery area.There were no apparent differences in the lengths, weights, weight–length relations, or chemical composition between river- and channel-hatched chum salmon migrants. Nor was there any difference in the rates of change in length, weight, or chemical composition of these two groups of chums when confined to pens in sea water for 10 weeks after migration.There were differences in the weight–length relations, lipid content, and nitrogen content between channel- and river-hatched sockeye migrants. It is suggested, however, that these differences are due to the fact that the timing of the peaks of migration of these two groups of fish differed and that at any one time channel fry were physiologically different from river fry.Growth of the chum salmon in sea water and the sockeye in the lake was exponential and the slope of the weight–length relation, W = aLb, was approximately 3.25. During this growth period although total weight, moisture, solids, lipid, and nitrogen increased the rate of increase in moisture was less than the rates of increase in total weight or the other constituents.

scholarly journals Phase Relationships in Sea Ice as a Function of Temperature

1976 ◽  
Vol 17 (77) ◽  
pp. 507-519 ◽  
Author(s):  
C. Richardson
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Sea Ice ◽  
Sea Water ◽  
Tabular Form ◽  
Nuclear Magnetic Resonance Spectrometer ◽  
Quantitative Measurements ◽  
Water Based ◽  
Eutectic Concentration ◽  
Phase Relationships

Quantitative measurements of the liquid water phase in a sample of sea ice were made with a nuclear magnetic resonance spectrometer. The measurements are used to compute the phase relationships in sea ice as a function of temperature. A model for sea-water based upon a mixture of seven binary salts is used for these computations. The n.m.r. measurements are related to the solvation water which is associated with each binary salt. This solvation water is bound to the salt in a pseudo-crystalline structure, with the amount of water determined by the eutectic concentration of the salt. The results are given in tabular form and differ somewhat from previously published tables. Two controversial hydrated salts were added to the table, based on the n.m.r. data.

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