Creating "Read More >>" link in your article

Creating 'After the jump' summaries

  

To create “Read More >>” in your article, follow the instruction above.

 

But you can read (I copy the article from link above) the article as follow:

 

After the Jump is a feature which lets you create expandable post summaries in your blog posts, so longer posts appear as an intro with a link to Read More

Creating jump breaks in your blog posts can be easily done right from the post editor, without the need for any HTML changes. First, decide where in the post you want to create the jump break, and place your cursor in that position:

Approximate wavelength (in vacuum) and frequency ranges for the various colors

Color                  Wavelength (nm)             Frequency (THz)

Red                     780 – 622                            384 – 482                                     
Orange               622 – 597                            482 – 503                    
Yellow                597 – 577                            503 – 520                         
Green                 577 – 492                            520 – 610                            
Blue                    492 – 455                            610 – 659                        
Violet                  455 – 390                            659 – 769


1 terahertz (THz) = 10³ GHz = 10⁶ MHz = 10¹² Hz, 
1 nm = 1e-9 um = 1e-6 mm = 1e-3 m.

Logarithmic Relation Between Transmittance and Concenctration

 

 

Why is there a logarithmic relation between transmittance and concentration?

Beer’s law (), states that the absorbance of a sample is directly proportional to the concentration of the absorbing species. The fraction of light passing through the sample (the transmittance) is related logarithmic, not linearity, to the sample concentration. Why should be this?

All Solvents are NOT Created Equal

If you look through a solvent vendor's catalog, you'll see quite a list of different versions of methanol (MeOH) or acetonitrile (ACN) - the most common solvents used in reversed-phase HPLC.

In a manufacturer's listing you will see HPLC-grade, GC-grade, MS-grade, and so forth. Solvents are manufactured for specific applications. These solvents are selected and purified for each specific application. For example, HPLC-grade solvents focus on UV absorbing impurities, whereas GC-grade ones look for compounds that interfere with some of the element-selective detectors, such as chlorinated compounds. MS-grade ones have another specification, and so forth.

INTRODUCTION TO GC

 

 

GC is one of the tools/instruments used for measuring the separate volatile compound from a mixture. The principle is the interaction between sample, mobile phase and stationery phase.

Sample to be analyzed in a small amount taken by using a micro syringe. Then the micro syringe needle inserted into a hot GC injector port, then sample injected. Injector temperature is set higher than the boiling point (20-30 Celsius deg), so the components of the mixture changed to a gas phase in the injector. Carrier gas, such as Helium, flow from the injector and push the components (in the form of gas) into the GC column. Inside the column, there is components separation and molecules partition between the carrier gas (mobile phase) and stationary phase occurs.

Cleaning the LCD Screen

Flat screen monitors, or more popularly known as LCD (Liquid Cristal Dsplay) monitors, have different ways to clean, compare than CRT (Catode Ray Tube), conventional screen. Standar monitor (CRT) screen has made of glass and they can clean with the same way to clean our furnitures in home or office which made from glass.

Fig 1. LCD Monitor

Flat screen monitor require special handling to clean it up, because the screen is more sensitive, easly scratched and damage, same with our flat screen TV.

Here are the steps to clean the LCD screen: