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analysis chemistry english translate help--initial spiking

2009-11-27View Original

Thread Content

-- Determination of Chloride in SX-EW Plants and Related Samples by Analyte Addition Ion-Selective Electrode Potentiometry Initial Spiking. This is the title of a paper. Due to my limited knowledge of analytical chemistry and electrochemistry, I don’t know how to translate ‘related samples by analyte addition ion-selective electrode potentiometry initial spiking’ into Chinese. Could anyone help me? Thank you. --
Reply #22009-11-27
SX-EW PLANT = solvent extraction and electrowinning plant. ANALYTE ADDITION: addition of analytes. ION-SELECTIVE ELECTRODE POTENTIOMETRY: method for determining potential using ion-selective electrodes. INITIAL SPIKING: preliminary investigation. A preliminary investigation using the method of analyzing chloride content in solvent extraction-and-electrowinning plants and related samples by adding analytes and employing ion-selective electrode potentiometry; for reference only
Reply #32009-11-28
Initial Spiking is NOT “initial exploration”. Please read this: Initial “Spiking” For samples with concentrations situated between the lower limit of linearity and the detection limit of the electrode, it is necessary to first “spike” the sample with a sufficient amount of the target ion, so that the measurements fall within the linear range. The sample is then analyzed using the standard addition method, and the initial concentration is determined by subtracting the amount added as a spike from the final measurement result. This procedure also helps to reduce the time required to obtain a stable mV reading – as this time usually increases significantly as the sample concentration decreases – but it is only effective in improving the accuracy of measurements for a very limited range of samples, probably only down to about one-tenth of the lower limit of linearity. For example, in the best-case scenario, the overall error in terms of ppm is likely to be at least ±2% RSD (4% at a 95% confidence level!). Therefore, if the lower limit of linearity is 1 ppm and any sample with a concentration lower than this is “spiked” to a concentration of 2 ppm, then the error associated with that spiked sample will be at least ±0.04 ppm. As a result, for any sample with a concentration of less than 0.1 ppm, the error will be greater than ±40% RSD!
Reply #42009-11-29
-- So, that is a problem. In the original paper it is ‘spiking’, not ‘spiked’. --
Reply #52009-11-30
-- I checked it up, and it seems that ‘initial spiking’ refers to the initial soaking process, something like activation. Sigh, I’m not sure if it’s right or not. --
Reply #62009-12-03
It should be, as ‘spiking’ means ‘reinforcement’.
Reply #72009-12-03
INITIAL SPIKING Initial activation/initial activation ----------------------------FYI
Reply #82009-12-05
If \"initial spiking\" is used to modify \"potentiometry,\" it could also refer to \"the formation of initial spikes,\" meaning the peak value of potential. For reference, if someone upstairs interpreted it as \"initial exploration,\" then it would be modifying the entire sentence. English sometimes has such structures, and it’s not easy to determine; it’s recommended that the original poster provide a summary, or make a judgment based on the content itself. The term \"piking\" is likely to appear again, or its synonyms may be used as well.
Reply #92009-12-05
Well, I’ll check it further; if there are any issues, I’ll post them for discussion.

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