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.
Carry out the determination according to the nature of the drug to be examined. Place the prescribed quantity of the drug in the round-bottomed flask of suitable capacity as specified in the monograph and add the prescribed volume of distillation liquid. Set up the apparatus (Fig.1), inserting a reflux condenser (Fig.2). Fill the graduated tube with water to the standard line and add the prescribed volume of xylene. Heat the liquid in the flask in an oil-bath between 130° and 150° to boiling and adjust the distillation rate as prescribed in the monograph. Unless otherwise specified, continue boiling for 5 hours at the same rate. Allow it to stand for some time, open the stopper of the apparatus and draw off the water slowly until the level of the xylene and volatile oil mixture corresponds to the preparation line, and allow it to stand for more than 1 hour at cool temperature. Then lower the level of the xylene and volatile oil mixture to the zero line, and read the volume in millilitre of the mixture of xylene and volatile oil at cool temperature. Subtract the volume in millilitre of xylene from the volume of the mixture of xylene and volatile oil and calculate the percentage of volatile oil content in the sample.