Moisture content of some Chinese herbal medicines:
1. Varieties with a moisture requirement of 10-12%: Wisteria gracilis
2. Varieties with a moisture requirement of 10-13%: Bai Qian, Bai Wei, Bai Lian, Hu Huang Lian, Zhi Mu Rou, Qin Gao, Gao Ma, Shouwu, Weiling Xian, Gan Song

Sand rice, foxtail millet, ephedra, catnip, honeysuckle, locust flower, half lotus, rose, magnolia, rose
3. Varieties with a moisture requirement of 10-14%:

Mingdangshen, Gegen, Gaoliang Jiang, Daliang Jiang, Mawei Lian, Qiannian Jian, Baiyaozi, Baifu Zi, Qingboxi, Daodouzi, Palm Seed, Lianxu

Red cardamom, green fruit, betel, Aristolochia, Citrus aurantium, Zelan, Scutellaria baicalensis, shell sand, Alternanthera philoxeroides, Schisandra chinensis, Hedyotis diffusa, Hedyotis diffusa

DiDing, Dou Ling Teng, Purslane, Summer Solstice Grass, Su Jie Feng, Winter Flower, Buddha's Hand Flower, Yang Jin Hua, Guan Hua, Hibiscus, Lotus Leaf, Ai Ye, Chuanxin Lotus

Robe hemp leaves, yellow cypress, red bark, mulberry bark, white calyx bark, Sichuan hibiscus bark, bitter oak bark, parasitic, honeysuckle vine, pig tooth soap

4. Varieties with a moisture requirement of 10-15%:
Chuanxiong, Baiji, Xuduan, Caoheche, lotus root, Xiebai, Maoci mushroom, Guangci mushroom, Lianfang, Yuankou, white cardamom, Buddha's hand, hawthorn slices, white fruit

Huaijiao, Lulutong, Watermelon Peel, Papaya, Qingpi, Peilan, Houttuynia cordata, Honghua, Guying Grass, Earthly Bone Peel, Cinnamon, Cinnamon, Cinnamon Twig, Chicken Blood Vine

Night Vine, Sea Breeze Vine, Green Breeze Vine
5. Varieties with a moisture requirement of 10-16%: wood fragrance, gentian grass, orange peel, chrysanthemum
6. Varieties with a moisture requirement of 11-13%: Jade Hairpin Flower, Orange Luo, Peppermint, Poria cocos, Triangles, Dried Ginger Peel
7. Varieties with a moisture requirement of 11-14%: Tongcao, Sihuapi, Xianhecao, Caokou, Bijie Pian, Shichangpu, Xianmao, wolfberry, Xiangfu, Fangfeng

Huangqi, Caowu, Wuyao tablets, dried ginger, Danshen, Huanglian, Hangbaishao, Haoshao, Tianma, Yujin
8. The moisture requirement is 11-15% for goldfinch flowers, maple leaves, water chestnut, motherwort, grass fruit, black jujube, dog spine slices, sweet water, two pointed leaves, row grass, and front beard

Duhuo, Yinchaihu, Fangqi, Mao Zhimu, Nanxing, Chuanniao, Banlangen, Alisma
9. Varieties with a moisture requirement of 11-16%: Gualou Pi, Wumei, Loulu, Hangmaidong, Huaixiaxi, Dahuang
10. Varieties with a moisture requirement of 11-17%: Mulberry, Polygonatum sibiricum, Asparagus
11. Varieties with a moisture requirement of 12-13%: Sophora flavescens and Fritillaria chuanbergii
12. Varieties with a moisture requirement of 12-14%: Litchi pits, Lengluo seeds, Atractylodes macrocephala, Huangling, Bai Zhi, and Sheng Banxia
13. Varieties with a moisture requirement of 12-15%: Yizhi, Jinguolan, Guanzhong, Shanglu, Platycodon grandiflorus, Paeonia lactiflora, Ermu, Beishashen, and Baitouweng
14. Varieties with a water content requirement of 12-16%: Fructus Aurantii immaturus, Melia azedarach, Hibiscus syringae, Eucommia ulmoides, Eucommia ulmoides, Morinda officinalis, Artemisia annua, Glycyrrhiza uralensis, Ophiopogon japonicus
15. Varieties with a moisture requirement of 12-17%: Cistanche deserticola, Guiyuan meat, Chuanniuxi, and Guangyam
16. Varieties with a moisture requirement of 12-18%: Gualou
17. Varieties with a moisture requirement of 13-15%: turmeric, Codonopsis pilosula, and Fritillaria thunbergii
18. Varieties with a moisture requirement of 13-16%: Plantago asiatica, pollen, Nansha ginseng, Angelica sinensis, Atractylodes macrocephala
19. Varieties with a moisture requirement of 13-17%: Lockyang, Schisandra chinensis, and black aconite
20. Varieties with a moisture requirement of 13-18%: Goji berries
21. Variety with a moisture requirement of 14-18%: Scrophularia ningpoensis
22. Varieties with a moisture requirement of 14-19%: native
At present, the pharmacopoeia specifies four methods for determining moisture content:

*Method: Drying method;

Second method: toluene method;

The third method: vacuum drying method;

The fourth method: gas chromatography.

*The law applies to drugs that do not contain or contain minimal volatile components;

The second method applies to drugs containing volatile components;

The third law applies to valuable drugs containing volatile components;