The elemental analysis of the samples (the percentage of C, H and N; O was calculated by difference) was made using a Thermoscientific FlashSmart CHNS.
Flashsmart chns
Manufactured by Thermo Fisher Scientific
Sourced in United States
The FlashSmart CHNS is an elemental analyzer designed to determine the carbon, hydrogen, nitrogen, and sulfur content in a wide range of organic and inorganic samples. It utilizes combustion and detection techniques to provide rapid and accurate analysis of these elements.
Automatically generated - may contain errors
Lab products found in correlation
3 protocols using flashsmart chns
1
Elemental Composition Analysis of Samples
2
Quantification of Functionalized Cellulose Nanocrystals
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The amount of carbon, nitrogen, oxygen, and sulfur in the CNC derivatives was quantified using a Thermo Scientific FlashSmart CHNS elemental analyser. The degree of substitution (DS) of CNC–N3 was directly calculated from the %N while the DS of CNC-DES was quantified from %C and calculated using (1) as previously reported [22 (link)]: where 6 x Mc is the carbon mass of one anhydroglucose unit (72.07 g/mol), MAGU is the mass of anhydroglucose unit (162.14 g/mol), Mg is the mass of the grafted moiety (404.4 g/mol), and MCg is the carbon mass of the grafted moiety (228.19 g/mol).
The degrees of surface substitution (DSsurf) were also derived from the DS values using(2) : where Rc is the CNC chain ratio = 0.29 [23 (link)].
The degrees of surface substitution (DSsurf) were also derived from the DS values using
3
Elemental Composition Analysis of Microalgae and Daphnia
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Before the beginning of the grazing experiment, samples of C. reinhardtii that had been grown in different conditions were collected for the analysis of cellular carbon, nitrogen, and phosphorus. Samples were taken from the respective culture bottles by filtering 15 to 25 mL of each culture onto pre-combusted (i.e., at 550 °C for 5 h) GF/C glass-fiber filters. After the seven-day grazing experiment or following 6-h starvation, five individuals of D. magna from each experimental group were transferred to a pre-combusted 25 μm GF/C filter for determination of elemental composition (C and N), and another five individuals of D. magna of similar body length and weight as the first five were collected for phosphorus measurement. Cellular carbon and nitrogen in both the D. magna and C. reinhardtii were measured with a CHNS (carbon, hydrogen, nitrogen, sulphur) elemental analyzer (FlashSmart CHNS, Thermo Scientific Inc. Massachusetts, USA) according to previously described protocol [78 (link)]. The amount of phosphorus (in the form of orthophosphate) was analyzed manually following acidic oxidative hydrolysis with 1% HCl [25 ] using a spectrophotometer at a wavelength of 880 nm, with a detection limit of 0.5 μmol/L.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!