Hy
may you suggest any sellers for adamsite (CAS #: 578-94-9) and protocol analysis in soil and water matrix?
Thanks in advance
Stefano
Hy, can you suggest a method to quantify acetic acid in aqueous bye GC-FID? Thsnks in advance
03 April 2018 5,831 0 View
Hy, i'd like to quantify isocyanate in ambient air with HPLC /UV, as suggested in NIOSH method 5551, after extraction from sampling tube containing an inert support impregnated with...
07 August 2016 9,258 1 View
Good morning, can you suggest a method for Sulfur trioxide pyridine complex determination? Thanks in advance Stefano
05 June 2016 1,089 2 View
May you suggest a method to quantify organic selenium in food? I thought to express it, as the difference between total selenium and inorganic (water soluble forms), but i'm not sure to extract...
02 March 2016 8,337 5 View
Hi, may you suggest a rapid method to quantify fiber in food without enzimatic steps? May i use the percentage of fat, ash, moisture and carbohydrate to quantify them? Thanks in advance Stefano
02 March 2016 4,746 4 View
May you suggest a method to produce hyaluronic acid from wheat on pilot scale? Thanks in advance Stefano Salvatori
02 March 2016 6,573 3 View
May you suggest a reference about the correct choice of column and stationary phase in HPLC? Thanks in advance Stefano Salvatori
02 March 2015 6,291 4 View
I need to quantify phosphorous in leaves; usually to quantify other elements (like Ca, Na) we turn to ashes the leaves and analyze the acidic solution by ICP-OES or ICP-MS, but i've the suspect...
02 March 2015 10,018 14 View
Do you know a method to quantify Inulin in food? Thanks in advance. Stefano.
01 February 2015 8,369 3 View
I'm looking for a method to quantify citric acid, folic acid, sodium bicarbonate and leonardite simultaneously in a complex matrix fertilizer ? Thanks in advance Stefano
31 December 2014 9,746 3 View
Approximate concentrations are require in compared with the WHO permissible limts
11 August 2024 2,723 1 View
I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...
10 August 2024 4,005 2 View
How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?
09 August 2024 3,291 2 View
I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...
09 August 2024 5,048 2 View
One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...
08 August 2024 6,690 1 View
How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?
06 August 2024 9,618 3 View
Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...
05 August 2024 3,084 6 View
I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...
04 August 2024 9,913 7 View
I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...
04 August 2024 1,200 2 View
- The Existence/Uniqueness of Solutions to Higher Order Linear Differential Equations - Higher Order Homogenous Differential Equations - Wronskian Determinants of $n$ Functions - Wronskian...
03 August 2024 2,366 0 View