ตำรามาตรฐานยาสมุนไพรไทย
Thai Herbal Pharmacopoeia
สำนักยาและวัตถุเสพติด กรมวิทยาศาสตร์การแพทย์ กระทรวงสาธารณสุข
Bureau of Drug and Narcotic, Department of Medical Sciences, Ministry of Public Health(Tinospora crispa (L.) Hook.f. & Thomson)
(Nelumbo nucifera Gaertn.)
(Centella asiatica (L.) Urb.)
(Centella Dry Extract)
(Centella Cream)
(Mesua ferrea L.)
(Piper sarmentosum Roxb.)
(Piper sarmentosum Roxb.)
(Pterocarpus santalinus L. f.)
(Santalum album L.)
(Senna tora (L.) Roxb.)
(Senna alata (L.) Roxb.)
(Senna Alata Tea)
(Piper retrofractum Vahl)
(Myristica fragrans Houtt)
(Andrographis paniculata (Burm. f.) Nees)
(Andrographis Capsules)
(Allium ascalonicum L.)
(Ocimum tenuiflorum L.)
(Curcuma longa L.)
(Turmeric Capsules)
(Turmeric Dry Extract)
(Turmeric Dry Extract Capsules)
(Arcangelisia flava (L.) Merr.)
(Curcuma sp.)
Harrisonia perforata (Blanco) Merr.
(Aristolochia pierrei Lecomte)
(Zingiber officinale Roscoe)
(Ginger Capsules)
(Ginger Tea)
(Cassia fistula L.)
(Nardostachys jatamansi (D. Don) DC.)
(Angelica sinensis (Oliv.) Diels)
Artemisia annua L.
(Ligusticum sinense Oliv. cv. Chuanxiong)
(Neopicrorhiza scrophulariiflora Pennell)
(Atractylodes lancea (Thunb.) DC.)
(Aucklandia lappa Decne)
(Terminalia chebula Retz.)
(Angelica dahurica (Hoffm.) Benth. & Hook. f. ex Franch. & Sav. var. dahurica)
(Kaempferia parviflora Wall. ex Baker)
(Hibiscus sabdariffa L.)
(Roselle Tea)
(Allium sativum L.)
(Zingiber zerumbet (L.) Sm.)
(Wurfbainia testacea (Ridl.) Škorničk.& A. D. Poulsen)
(Cannabis sativa L.)
(Myristica fragrans Houtt)
(Dracaena cochinchinensis (Lour.) S. C. Chen)
(Ficus racemosa L.)
(Hyptis suaveolens (L.) Poit.)
Clerodendrum indicum (L.) Kuntze
(Phyllanthus emblica L.)
(Citrus hystrix DC.)
(Citrus hystrix DC.)
(Areca catechu L.)
(Momordica charantia L.)
Moringa oleifera Lam.
(Aegle marmelos (L.) Corrêa)
(Solanum trilobatum L.)
(Morus alba L.)
Gynostemma pentaphyllum(Thunb.)
Makino
(Clinacanthus nutans (Burm. f.) Lindau)
(Cissus quadrangularis L.)
(Mimusops elengi L.)
(Zingiber montanum (J. König) Link. ex A. Dietr.)
(Piper betle L.)
(Capsicum annuum L.)
(Capsicum Oleoresin)
(Capsicum Gel)
(Piper nigrum L.)
(Piper nigrum L.)
(Eurycoma longifolia Jack)
(Thunbergia laurifolia Lindl.)
(Piper wallichii (Miq.) Hand.-Mazz.)
Senna garrettiana (Craib) H. S. Irwin & Barneby
(Terminalia bellirica (Gaertn.) Roxb.)
(Terminalia chebula Retz.)
(Caesalpinia bonduc (L.) H. Roxb.)
(Tarlmounia elliptica (DC.) H. Rob., S. C. Keeley, Skvaria & R. Chan)
(Hog Creeper Vine Dry Extract Capsiles)
(Hog Creeper Vine Dry Extract)
(Brachypterum scandens (Roxb.) Miq.)
(Lepidium sativum L.)
(Nigella sativa L.)
(Cuminum cyminum L.)
(Foeniculum vulgare Mill.)
(Plantago ovata Forssk.)
(Pimpinella anisum L.)
(Carum carvi L.)
(Anethum graveolens L.)
(Trachyspermum ammi (L.) Sprague)
Albizia procera (Roxb.) Benth.
(Acorus calamus L.)
(Tiliacora triandra (Colebr.) Diels)
Cyanthillium cinereum (L.) H. Rob.
(Orthosiphon aristatus (Blume) Miq.)
Murdannia loriformis (Hassk.) R. S. Rao & Kammathy
(Capparis micracantha DC.)
(Chrysopogon zizanioides (L.) Roberty)
(Cyperus rotundus L.)
(Cannabis sativa L.)
(Syzygium aromaticum (L.) Merr. & L. M. Perry)
(Boesenbergia rotunda (L.) Mansf.)
(Acanthus ebracteatus Vahl)
(Acanthus ilicifolius L.)
(Kaempferia galanga L.)
(Curcuma comosa Roxb.)
Betula alnoides Buch.-Ham. ex D. Don
Cannabis sativa L.
Carthamus tinctorius L
Mitragyna speciosa (Korth.) Havil
Mallotus repandus (Rottler) Müll. Arg
Azadirachta indica A. Juss. var. siamensis Valeton
Azadirachta indica A. Juss. var. siamensis Valeton
Punica granatum L.
Rhinacanthus nasutus (L.) Kurz
Baliospermum solanifolium (Burm.) Suresh
Curcuma aeruginosa Roxb
Boesenbergia kingii Mood & L. M. Prince
Senegalia rugata (Lam.) Britton & Rose
Acacia concinna (Willd.) DC.
Senegalia rugata (Lam.) Britton & Rose
Acacia concinna (Willd.) DC.
Senna alexandriana Mill. var. alexandriana
Cassia acutifolia Delile, Cassia angustifolia Vahl
Butea superba Roxb. ex Willd.
[Plaso superba (Roxb. ex Willd.) Kuntze, Rudolphia superba (Roxb. ex Willd.) Poir.
Pueraria candollei Graham
ex Benth. var. mirifica (Airy Shaw & Suvat.) Niyomdham
Streblus asper Lour.
Suregada multiflora (A. Juss.) Baill. (Gelonium
multiflorum A. Juss.
7.7 TOTAL ASH
Use Method I unless otherwise directed in the monograph.
Method I
For vegetable drugs Incinerate 2 to 3 g of the ground drug in a tared platinum or silica dish at a temperature not exceeding 450° until free from carbon, cool and weigh. If a carbon-free ash cannot be obtained in this way, exhaust the charred mass with hot water, collect the residue on an ashless filter paper, incinerate the residue and filter paper, add the filtrate, evaporate to dryness and ignite at a temperature not exceeding 450°. Calculate the percentage of total ash with reference to the air-dried drug.
For other substances Carry out the above method using 1 g, unless otherwise stated. Calculate the percentage of total ash.
Method II
Heat a silica or platinum crucible to red heat for 30 minutes, allow to cool in a desiccator and weight. Unless otherwise specified in the monograph, evenly distribute 1 g of the substance being examined in the crucible, dry at 100° to 105° for 1 hour and ignite to constant weight in a muffle furnace at 600°±25 °. Allow the crucible to cool in a desiccator after each ignition. Flames should not be produced at any time during the procedure. If after prolonged ignition a carbon-free ash cannot be obtained, take up with hot water, filter through an ashless filter paper and ignite the residue and the paper. Combine the filtrate with the ash, carefully evaporate to dryness and ignite to constant weight.