Phosphorus in polymers

The XRFS method of Wolska [29] discussed in Section 11.1.2.1 has been applied to the determination of bromine and phosphorus in polymers. Various other workers have applied to this technique to the determination of chlorine and sulfur [30] and various other elements [31, 32]. 

Two oxygen flask methods are described in Methods 2.10 and 2.11 for the determination of phosphorus in polymers. The first is applicable in the range 0.01 to 2% phosphorus and the second in the range 2 to 13% phosphorus. 

Method 2.9 Micro Determination of Phosphorus in Polymers. Acid Digestion - Spectrophotometric Method... 

This method is capable of determining total phosphorus in polymers in amounts down to 0.5% and np to 20% with an accnracy of 5%. 

This oxygen flask combustion - spectrophotometric procedure determines total phosphorus in polymers in the concentration range 2 to 13 % phosphorus. 

METHOD 87 - DETERMINATION OF 0.01 - 2% PHOSPHORUS IN POLYMERS. OXYGEN FLASK COMBUSTION - SPECTROPHOTOMETRIC METHOD. 

METHOD 89 - MICRO DETERMINATION OF PHOSPHORUS IN POLYMERS. ACID DIGESTION - SPECTROPHOTOMETRIC METHOD. 

Determination of 2 -15% phosphorus in polymers. Oxygen flask combustion-spectrophotometric procedure... 

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