Chin Yik Lin

10 Questions 27 Answers 0 Followers

Questions related from Chin Yik Lin

What are the commercially available materials that has a high surface area or CEC (cation exchange capacity)?

The material (besides clay) needs to be non-reactive/stable, and preferably synthetic. Thank you very much in advance! Your suggestion is very much appreciated!

09 December 2018 2,421 6 View

How does BET surface area of seeding materials affect calcium carbonate precipitation?

Using calcite and kaolinite as seeding materials, how does the BET surface of these seeds affect the precipitation of calcium carbonate in supersaturated medium.

19 November 2017 5,911 2 View

Can biomass burning increase/decrease surface marine primary productivity?

To what extent biomass burning (or forest fire) affects marine productivity?

18 November 2017 6,942 1 View

What would be the best portable device to look for concretions and rocks underneath a salt marsh?

The diameter of the concretions and rocks are ~ 10 to 20 cm at depth of 1 to 3 meter under a salt marsh environment. The salt marsh sediment generally has very high moisture content with 30% of...

28 September 2015 4,964 6 View

What could be the plausible sources of Al, Mn, K and Fe in rainwater?

The rainwater samples were collected in a suburb of Kuala Lumpur (Malaysia) after a prolonged drought and haze episode. These samples were filtered and acidified prior to analysis by ICP-MS.

03 January 2015 718 22 View

Is it appropriate if I use a standard reference material (SRM) which is not quite comparable to my sample to check for recovery?

For example: My sample is marine sediment but I used urban dust SRM (both samples were subjected to same digestion technique).

24 April 2014 4,710 13 View

Is it appropriate to freeze raw water samples for storage prior to SVOCs and VOC analysis?

I would like to store rainwater samples for a long period of time (~1 month) prior to analysis for SVOCs (PAH, PCBs) and VOCs (bromoform, trihalomethane). So, what will be the best technique to...

25 March 2014 8,360 8 View

Is there any standard method/procedure to measure stable isotopes (elemental C, N, O, S) in marine sediments and seawater samples using a CF-IRMS?

In view of the multifarious analytical procedures involved in examining elemental isotopes (C, N, S, O) in different samples (sediments and water), I would like to know if there is any standard...

22 February 2014 1,422 3 View

Is there any alternative method besides using a GC-C-IRMS to measure isotopic ratios (13C) of halocarbons in sediment and phytoplankton samples?

My research facilities only limited to an IRMS and GC-MS without coupling. I am having trouble to use these instruments in finding the isotope ratios and concentration of halocarbons in the solid...

12 November 2013 6,273 14 View

What will the contribution or benefits of studying stable isotope geochemistry for a third world country be?

Clearly, most third world countries do not have the facilities, expertise and budget to perform such advanced research. They tend to focus more on fundamental research and commercially potential...

01 October 2013 6,570 5 View