// create a serial queue and give it a Thread pool (anything inheriting from IThreadPool, ManagedThreadPool is provided as a default implementation)
SerialQueue queue = new SerialQueue(new ManagedThreadPool());

// push some work to the queue
queue.DispatchAsync(null, (_) =>
{
    Console.WriteLine("This is executed on a worker thread");
});

queue.DispatchAsync(null, (_) =>
{
    Console.WriteLine("This is also executed on a worker thread");
});