Alternatively, an organic acid selected from the group consisting of {HEAD ~ oxalic acid}, {TAIL ~ malonic acid}, succinic acid, and glutaric acid, may be used to produce the precipitate 
Alternatively , an organic acid selected from the group consisting of { HEAD ~ oxalic acid } , { TAIL ~ malonic acid } , succinic acid , and glutaric acid , may be used to produce the precipitate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH