Substitute for Potassium persulfate (K2S2O8) in Kjeldahl nitrogen methods?
If you want an accepted analytical result, you should use standard analytical procedures. There has been a very detailed study on the use of persulfate as a substitute for the old Kjeldahl method. Persulfate works very well and is acceptable.
I'm not familiar with Acutodesmus but encounter in publications. Do Acutodesmus obliquus and Scenedesmus obliquus, stand for same species? Thank you, Eyasu
03 April 2016 8,689 2 View
Please, Can somebody help to convert sunshine hours to solar radiation in tropics (East Africa)? I've sunshine hours data from Meteorological station and want to convert to solar radiation in...
02 March 2016 8,771 16 View
How can I get/generate modeled values for specific growth rate (µ) and Biomass Production Rate (BPR) for microalgae to compare with the experimental ones? Thank you!
01 February 2016 6,998 2 View
total phosphorus?
07 August 2014 429 6 View
I want to use BG11 media but couldn't get ferric ammonium citrate? Is there any substitute for this chemical?
06 July 2014 4,451 3 View
The paper in question is "Interpolation of Nitrogen Fertilizer Use in Canada from Fertilizer Use Surveys". This paper was very recently published by Agronomy (MDPI). Agronomy has, in the last day...
07 August 2024 9,934 3 View
Are there any statistical methods to justify your sampling technique using SPSS or AMOS?
05 August 2024 9,153 4 View
Better ways to analyze the qualitative and quantitative data in a sequential explanatory mixed method approaches
04 August 2024 2,703 6 View
What is the best way to freeze the rat brain - liquid nitrogen, Dry ice , isopentane - after isolation for later protein investigation by Elisa?
01 August 2024 1,722 1 View
Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...
31 July 2024 8,141 13 View
I am currently considering a research project focusing on a comparative analysis of starch metabolism in orchids and roses. I am particularly interested in identifying the types and quantities of...
30 July 2024 4,267 2 View
Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...
29 July 2024 7,198 9 View
Employing a pragmatic inquiry research design, looking for published research using this method, employing qualitative research data collection methods of semi-structured interview and focus...
28 July 2024 540 2 View
First, thanks for taking the time to read my puzzle 🥹! I am currently working on the methodology part of my dissertation, and I have chosen a questionnaire as the instrument for my quantitative...
27 July 2024 3,457 3 View
I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...
24 July 2024 6,592 5 View