What the ideal methods for analysis Chlorophyll a and b, and Anthocyanin for hydroponics lettuce???

More Abdelrazzaq M Al-Tawaha's questions See All

(QMRAcatch). Looking for partner from South Asia and North Asia as well as from Africa?

I searching for a partner to join us ongoing project about QMRAcatch.The person should have experience on working QMRAcatch. Please send me the CV. The Interuniversity Cooperation Centre Water...

31 March 2024 9,243 4 View

Is there any positive correction between chlorophyll content(a,b and total content) and SPAD value in lettuce leaves???

The question is in another way. What is the relationship between SPAD chlorophyll value and Chlorophyll a, b and total Chl? For example, if the lettuce plant has high SAPD content value that...

10 June 2020 3,292 1 View

Question for SAS with two Factor?

I have experimented with two Factor: Factor A: Two iron sources and Factor B: two seasons with three blocks. When I run the SAS, the interaction not significant, but the combination of the...

18 May 2020 2,804 6 View

Can anyone send a SAS Code for measure Maximum and Minimum average value for some parameters?

I have water temperature data for moring and evening, I need to show the maximum and minimum value by the SAS program. Can anyone inform me of the SAS code for this

28 March 2020 4,343 3 View

Can anyone send a Guidelines to write a systematic review in agriculture topic?

I need Guidelines to write a systematic review in agriculture topic.

24 March 2020 8,246 8 View

How to convert mg/L to mg/kg values in the measurement of plant tissue minerals analysis?

I analyzed the plant tissue minerals such as N,P,K by atomic absorption (AAS). I take 0.25g of dry sample and digested. Then filtered and complete the solution to 100ml. The final reading for N,...

23 February 2020 3,406 8 View

What the differences between small scale aquaponics and low tech aquaponics?

What the differences between small scale aquaponics production and low tech aquaponic production in concept, mechanism, components and production.

09 October 2019 1,270 2 View

I need protocol for Chlorophyll a and b, Vitamin A and vitamin C for lettuce plant??

29 June 2019 1,923 2 View

Can please any explain the nutrient solution calculation in this table??

I looking for find explain for the concentraion in second table. what I mean for example: the amount used from Ca(NO3)2.4H2O equal 1003 g/1000L. and the concentration for Ca in the second table...

09 June 2019 3,637 4 View

I used Hanna instruments (Multi parameters) and I used for meaurement Nitrate. The readying was more that 30 mg/l. How I can diluted the water sample?

I want to diluted water sample. The sample volume(10 ml), the reading give me out of range( the range 30 mg/l). amount of Nitrate I have more than 30 mg/L. How i can dilute the water sample to get...

04 May 2019 9,437 12 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

01 August 2024 7,504 2 View

Does soybean seed coat or cotyledon contain chlorophyl or flavonoids? What types? determined by paper chromatography? other methods (high school lab)?

Am trying to develop a lesson/lab to determine and compare antioxidant properties of soybeans of various colors. Preference would be low tech and low cost. Any assistance is greatly appreciated.

25 July 2024 7,498 2 View

How can I calculate the SOD enzymatic activities using the spectrophotometer method?

I have to quantify the enzymatic activities of SOD in plants using a method that employs hypoxanthine-xanthine oxidase to create O2. The colorimetric reaction was performed by combining...

23 July 2024 8,492 3 View

Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

22 July 2024 1,210 2 View

When making abraxane with Nab tech, why is 9:1 Chloroform&EtOH used as solvents?

Is it the best optimization ratio based on experiments?

22 July 2024 8,170 0 View

What is the solvent system required to run tlc for calixarenes?

If you don't understand my question let me know

21 July 2024 563 1 View

Is there a method that I can measure alcohol dehydrogenase activity using NAD+ in enzyme extraction from plants?

17 July 2024 935 1 View

Ali Alhayany

PLZ.look at the following link:Article Non-Destructive Assessment of Chlorophyll Carotenoid and Ant...

Imran Ali Lakhiar

You may read following manuscript (Article The effects of red, blue and white light-emitting diodes (LE...

Daniel Kunk

This should be able to help you, for chlorophyll/acetone procedure.

https://pdfs.semanticscholar.org/6f24/5f7f81a1b0035c88a877452cbc54840d98d0.pdf