The first turbine generator was placed in service in 1903 for Newport Electric at Newport, RI. Higher steam pressures were made possible by advances in boiler design and materials. Early boilers were cast iron and low grade steel and were riveted. Specialty steels and welding allowed continuing...
500 μL of hexane/dichloromethane (1:1, by vol) (Sigma Chemicals, St. Louis, MO, USA), was added followed by addition of 100 μL of 100 mg/L of 5α-androstanol (Steraloids Inc., Newport, RI, USA) as internal standard and then stored at −20 °C until analysis by gas ...